I have to give props to Ubisoft for not doing this - they've released countless patches for AC4 that they probably didn't need to. The fact that they've included such extensive post-release support has encouraged me to buy other Ubisoft titles.
Clearly this has the opposite effect on me in terms of WB titles.
Did you not play AC III? They patched that a lot too. Turns out that it needed like 100% more patching to actually iron out issues. Side-quests were still broken after all the patching as well.
There would be no Bethesda, Obsidian, or Telltale Games then. That's just off the top of my head.
I agree actually, I think it's more likely for all those to no longer exist than for them to ever release a polished product.