Yes, computers are progressing a little more slowly in a sense. This isn't a bad thing. You shouldn't have to buy a new one every two years. But they're still different.
And that's what makes it more useful to more people.
OSX's .app drag-and-drop is the closest to the right answer. Linux's package management is a working but hugely complex solution to a problem that should be entirely sidestepped. Windows is totally broken.
Each app should live in its own world. Management of libraries and support infrastructure should also be neatly modular. An app should not have an "installer" and should not be allowed to mess with the OS.
Let's say there's a 80/20 split, between what is really easy or quick or fun --some subjective measure of "better"-- to do on the console vs what you need a general purpose computer for. At some point, the console is going to win out and those 20 percent items, and tasks that you'd need a general purpose computer for are going to somehow change. Either you'll find another way to accomplish the same general task or tools for the console will arrive that are "good enough". So the question would be, does the console do enough of what people generally do to change the things they rely on a general purpose computer for?
Granted, the successful consoles I can think of are all TV related, and the TV has key advantages over general purpose computers for those consoles (bigger screen, setup to be watched instead of worked on, better sound, etc).