Evans is going to be replaced by Beck and Kapanen as soon as next season. Both of those guys are more offensive then Evans.
while on paper Hoglander is better then Evans, Hoglander serves no puropse to the Habs. We have a pile of middle six on the way that are bigger and also great 200ft players.
This is an NHL2000 trade with no regard what the team needs.
As for X, he's not going anywhere unless the overpayment makes you cry. He missed years of development and 50/50 to be top 4. I can only remember one other top 4 with his kind of size and nastiness and that was Chara. That's what fans AND managent think X will develop into so you can see why the trade price will make you cry.
Moving on....