Nah, it's because the DBO story says that it's impossible. We are Humans in DBO. Not saiyans. Humans just have a little amount of saiyan DNA left. Barely enough to go SSJ by asking Shenron to unlock that ability. Anything beyond that = impossible for Humans. People just don't care about those facts cuz they are being dumb fanboys. But they can ask all they want. It just won't happen! You are a Human in DBO. Not a Saiyan.
And no, we can not ignore/rewrite/change the DBO Story just to make it possible. It's the Game story after all. Also common knowledge also makes it impossible to go SSJ2. Always pay attention in school kids!
I don't disagree with adding transformations just for the hell of it. However, I do think it's limiting to not think about adding future content that expands upon the original story and doesn't necessary change it.
Why not add to the lore and to the story instead of saying it's impossible because the story as of now doesn't permit it? I just don't think these ideas should be entirely shut down and believe that as this game becomes it's own, Daenos should look to adding content that builds upon the existing story.
So while I entirely understand the focus as of now should be on improving the existing game, I don't think that suggestions for future world building content should be shut down altogether.
This game's lore is among my favorite aspects of the entire DB series and think it would be great for this game to add to it. Who know what they would've done if it was never shut down?