^I will admit that I exaggerated a bit there about it ruining the series, but it turned off quite a lot of fans that stay away from the build series and the only they keep tabs for the only thing good about Try, the new Gundam variants and designs which is about the only thing that is actually a success about that show.
As for the existence of Divers, in my personal belief I do think that they just wanted a redo after Try, especially whoever wrote Divers. Try added so much unneeded bs and steered the series from what was established that the writing and characters suffered massively, that there is a failure. At best all you can say about Try is that it sold more Gunpla and it gave the hentai mangakas more girls to draw and not much else.
IBO not getting a new season is mostly because the story is over and finished the way it was supposed to and is not supposed to have a sequel, and I say this as someone that wants a sequel to IBO.