Hmm yeah, but what if applications had to ask for less memory from the kernel?
that would change nothing to you. Unless they are seriously consuming a lot of memory and filling up processes while not needed, then it’s fine. Otherwise it means the app was developed by a bunch of monkey, but that could happen - maybe even more likely - with native software as well.
Tldr: to the end user it changes literally nothing nowadays, to the companies and the devs it changes quite a lot. And to some degree, end-users won’t have to deal with shitty ugly apps (unless the designers are jerks, in which case you are probably working in the same company as me)