Then I for one am glad that you’re not in charge of incorporating them in. They just acquired the full rights to one of the biggest franchises within their film juggernaut, holding nearly every piece of the MU at their fingertips. They no longer have to skirt around things like the use of the word mutant or even use of certain characters. And if you’re saying that it’s impossible to fit them in, tell that to literally every new IP that came to be added to the MCU even as late as Phase 3, even squeezing Captain Marvel into the universe and saying she’s been there all along.