Sure, he loves Gambit so much that didn’t include him in any of his scripts. I don’t doubt he likes the idea of Tatum as Gambit though solely because of the financial potential it could’ve had when it was first announced. Tatum’s been so out of the picture lately that I doubt he’s still a box office success. Now we'll never know.
Studio is always the one to pull Gambit, Donner has been trying to get him in the movies since the first one, then theres the fact that the X-Men films are total s***e , at the time X2 was awesome, and First class and DoFP were good but taking off the rose tinted glasses they are not good films at all, the truly great ones are the ones the studio had less of a hands on with, Deadpool and Logan, they were awesome Deadpool 2 was great too just not as good as the first one imo