Genuine question, why? Have you ever even tried to do a true solo run in VT2? It’s not like it’s a cakewalk like you’re making it sound, and if you do claim that it’s a cakewalk I’d LOVE to see you post footage of you soloing in Cata, or even Legend, because otherwise I just can’t see a reason why you would think being able to solo some maps is a bad thing.
Why shouldn’t it be possible to be good enough to be able to solo maps? Why should the game artificially and forcefully prevent you from doing that by imposing stupid limitations on what you can do?
What’s the point of having the downed ally system if it should be impossible to come back from it? You might as well just kill off the game as soon as a 3rd person falls down in that case, or is 2 people alive still not enough teamwork for your tastes? Should missions only be possible with 3 people alive? Or is even that too much soloing? If we’re gonna limit how people can play the game like that, why not make it so the first person dying ends the mission immediately? That surely promotes the most teamplay after all!
Also if they didn’t want all the VT comparisons, they probably shouldn’t have copied over so many systems over that were done miles better in VT, eh?