I never understood people saying Catalyst was terrible, especially if you liked the first one.
I can understand not enjoying it as much as the first one if you didn't like the formula changes. Yes the skill tree was useless, yes the ubisoft collectible were trash, but... I mean that's it?
The gameplay was still amazing, the visuals and art direction were fantastic, I personally did enjoy the "open world" and even if you're not fan of it, the actual story missions still have unique designs like in the first game etc.
Yes it has some flaws, but to the point of saying that it was this bad makes no sense to me if you already like the first one. I think that's exaggerated and people are way too extreme with their criticism.
I had a great time with Catalyst even if I wish some elements in it were different, it's still a very original and different game compared to most stuff out there.
Mirror's Edge is a franchise that I really like, the atmosphere in it is so unique, if they plan to never use it again, maybe it should be given to another studio.