Console games have survived for many, many years without the ability to issue critical fixes and they seemed to do ok. I've played console games since 1991 and I've never ran into a game that had bugs that made it unplayable. I think the QA cycle would be more complete if developers didn't rely on on-the-air patches.
It shouldn't really become acceptable to ship an knowingly subpar product with the attitude "we can always issue an update later."
There is an art in exploiting bugs in old games and working to glitch your way to worlds you aren't supposed to enter at that time. The kind of time and effort in finding these is really amazing. Finding and exploiting those bugs is an art form in itself. Take a look at this - https://www.youtube.com/watch?v=aq6pGJbd6Iw Skip to 12:15 for the real insanity.
(I figured out you don't have to pass anything specific into the share parameter, you can do "?share=poop" or even just "?share."