The problem comes in when fans suggest that Orville's deliberate TNG look makes it "more real Star Trek" than actual Star Trek. It's an aesthetics thing. If Trek's aesthetics had never changed whatsoever, barring minor changes, yeah, I'd be annoyed that DSC is deliberately trying to look different. But the films went for a different look, as did TNG, and just like both of those situations, this is the first new prime Trek in over a decade. So it does, and should, look strikingly different.
By "real" I think they mean the show will represent the spirit of what Trek is supose to be. To me I take that as a positive future that explores modern issues through it's sci-fi setting. Alien characters that represent earth cultures or earth traits or as a means of being able to comment on humanity from a outside perspective. PLus brightly colored sets and uniforms. I think also they are mostly thinking about TNG or the Berman era.
Jason