I'm completely with you on this. In my country, they often say "every kind of advertisement is an advertisement", meaning that even a bad reputation is better than none. I disagree. If I know nothing about a product, I can be convinced to like it and maybe buy it. If I only know negative stuff about a product, I'm pretty sure it'll be hard to change my mind and I'm almost sure not to buy it. So the Sonic movie kinda gets the "oh, they fixed it" bonus, but still has the "oh, they didn't think it needed to be fixed in the first place, so I'm really unsure about the quality in general" malus - yes, it did get my attention, but I can't believe that "oh god, what did you do" is the kind of attention one would need.