First: I don't understand why they made a Sonic movie. I'm not sure that Sonic fans are happy to play Sonic games anymore, so why would they want to watch a Sonic movie. Second: I can't believe that they couldn't see that the design was pure garbage, people make memes with that kind of "reimagination". Like someone said somewhere: it looks like the studio didn't have the rights for Sonic. Third: Weirdly, I'm sure that people now plan to watch this movie because of that disastrous trailer.
That tweet shows how insane the design for the movie is:
I think the studio is overestimating the reaction, most people don't care about the movie, it's just interesting because it's crazy.