They shouldn't pander to anyone. Do what they want and we can take it or leave it.
They can pander to me all they like, I certainly won't complain
As for the topic.... This is really a very frustrating one to talk about, and definitely frustrating when trying to articulate a position, not only because everyone want to be the first to do a gotcha, but also because people often ruin good points or questions with mountains of misinformation, tarring anyone who holds a similar opinion with the same brush. I'm sure I'm guilty of it myself.
I didn't vote for either option because both feel too disingenuous for me, it's pretty inarguable that Disney meddled in KH3 to a far far larger extent than they ever have before. Does that have a direct impact on the complete dearth of good oc/square content in the game? Not necessarily I think (As a side note, I feel somewhat vindicated for claiming years ago that Twilight Town would be a bad hub world)
Clearly a decision was taken, most likely soon after the engine swap, to trim the fat of the game right down to only the essentials. Now what I and many other fans consider essentials clearly aren't what Square considers essentials, which is fine, that's their prerogative and their game to make, and it's a good statement to make when talking about what Square *ought* to have done, however, I certainly don't think anyone should be surprised when fans consequently get upset or disappointed due to such changes. If you're in favour of the first statement, then you should realise the second is the inevitable reaction to it.
Rightly or wrongly, the previous 19 years of numbered titles, spin offs and inbetweeners have created a certain expectation of what a KH game is for people, if the developers consciously or unconsciously don't hit that mark there will be a negative reaction (and I don't think this is a linear thing, like, oh a KH game HAS to have such-and-such, it's more like, well does what this game have outweigh what I personally feel it *ought* to have had, and I think that applies for any new entry in a long running series. So obviously the criteria is pretty personal).
Yeah maybe it is NOT the point of a KH game to include square characters and strong original content (according to certain users) but at the same time, even in KH1 the more memorable moments came from pieces that were mostly or wholly original KH story (Like the ending), and certainly in later games the more memorable parts have come from this part of the pie rather than the Disney slice, to borrow
@KudoTsurugi analogy. So with all this in mind, it's totally understandable that a lot of people out there are more attached to the OC locations, characters and the Square side of KH, especially if you consider its only really KH3 that completely rebuked this section of the KH pie, because what a lot of people don't seem to get is the decline started by the handhelds didn't make fans think "ah, so a new game capable of next gen home console capabilities will have even LESS representation than these games", it made them think "ah, so a new game capable of next gen home console capabilities will be a return to form for representation similar to KH1 and KH2, if not MORE than those games"