Except when the entire MCU franchise has been built on that very notion.People were pretty happy about X-Men '97 and I don't recall any of them being upset that it wasn't in continuity with past or future X-films.
I suspect the default is that most people just want good stories, not for them to all fit together like puzzle pieces.
Sure not every franchise has to be a continuous universe....but when your franchise IS THAT UNIVERSE...than yeah its kind of important.
And X 97' is certainly a continuation of the original animation. If they had just done a different xmen with no connection to the OG, there would certainly be people upset.







