I'm not sure how pervasive they are. I can really only account for myself. The tournaments side quests are a small thing. The fact that it's such a simple mini-game to implement makes the annoyance they aren't there even greater. It would've been easy to have them take place beyond the gates where Zeus is standing post-world. It's not a
Hercules-specific thing--although
Hercules being present should've made it even easier to include--since, as I said before, they are also present in BbS in the form of the Mirage Arena. While I personally do enjoy the battlegates, they're more like the side quests in 3D (I believe they were called portals) than anything else. One-off battles that you have to wander around multiple maps to aren't really the same experience; you also don't get to fight characters in any of the battlegates, only random Heartless. Tbh, leaving aside the fact that the game lacks tournaments, I think there should've been many more battlegates anyway.
As for Radiant Garden's absence, to me that's not superficial because it's tied up in the absence of the Final Fantasy characters. The game is lacking both a heart and a midpoint. Twilight Town doesn't function very well as a hub world in 3 to me (what's funny is it would probably work better as a hub world
post-3 now Roxas and co. are all there). Then there's the fact that the story of the whole saga began with what happened at Radiant Garden. Not going there to visit SDG's core friends and see the castle finally restored or having some story follow-through on what it means for the Apprentices to be there again after what they did is a huge failure, imo, and it's hard to suspend disbelief that Ienzo is allowed back in the lab or that Sora wouldn't fly straight over there to check on things or that Squall wouldn't be in contact with them simultaneously. As an aside, it would've been the perfect world to have Kairi train on, too--the FF characters could've been training her along with Merlin--since it would allow her to finally be in her home world again. It would've been interesting for Aqua to reappear there when she was saved as well, since it's the place she fell into the RoD.
To some degree I agree with you. But I guess for me it's a hard sell to say Nomura is blameless in how his telling of this story has lead to so much fan criticism. It's been a big trainwreck in a lot of ways. It took all the ReMIXes to clean that up prior to 3 and then 3 rolls around and it's as if he's completely over the completion of his own story. Since the original story and characters often aren't my main concern with the series, it's not at the top of my list of criticisms like it is with other people. Still, 3 often feels like it's lacking in any and all payoff, after years and years and years of nothing but buildup. (The return of Radiant Garden to its former glory is also one of those lesser examples of buildup leading nowhere, but I was more referring to the original story on that point.) Instead everything about the saga's resolution seemed to get bare minimum attention while he was busy setting up the metamorphosis of KH and its characters into the lost Final Fantasy XV. So I can't help but question the attempts to externalize all the blame for fan criticism onto the fans rather than acknowledging that, at least to some degree, this ship hasn't been run very well... I almost think Nomura has come to a place where he doesn't take KH very seriously anymore and thinks of it as little more than a money-maker for both Square and Disney to show off their IPs, which is the reason he doesn't hesitate to play fast and loose with its story.
And because his wishy-washiness has become so apparent, my reasons for following the series are slim and can seem superficial. If he wants to implode his story, feel free, as long as I get my fix of the basic things, in other words, lol. To me, the Radiant Garden crew and tournaments are "the basics," and the fact that he skimped on those is flabbergasting. (For reference, the other items under my "basics" list are well-designed Disney levels, lots of Sora and Riku, SDG, and the Command Menu.
)
Well, you're right. It can go awry depending on
what you listen to. For example, the btiching about Atlantica in KH1 lead to it being a musical world in 2, likely its absence in BbS where it would've been perfect, and the dearth of a proper water world for almost a decade and a half 'til The Caribbean in 3. And more recently is all the stuff with Kairi from the fandom. The last thing we need is a bad character eating up more screentime, imo. I'm still skeptical that will happen since MoM was sold to some degree as a Kairi game and she still got the shaft. Who knows.