I personally feel like the magnitude of this -- especially compared to how simple the solution is -- makes it a miss that's really much more extreme than most others.
EDIT: Though I agree that "shameful" isn't the right word to use. Rockstar wronged themselves much more so than any other party.
If the fix had been some super application specific super obscure thing, we would all understand.
Instead... the bug is easily describable to anyone who knows what JSON is and the fix is “don’t parse JSON the slow way”.
So I think some of the leniency afforded to the devs may be misplaced. Then again, hindsight and all that.
I’m sure GTA has unlimited bugs to look into, but a bug that turns people away before they even start should have probably been given higher priority.
Would we?
Even if I don't understand what it's doing, devs doing nothing about an O(n^2) algorithm that takes multiple minutes every load is clearly a big mistake.
Even if it's something that has to be that slow, cache the result.
That said, they're all things like "refactor the frobnicator code so it's more obvious what it does" and "make templating system log changes to server". Nothing on my list says "Look in to that major performance issue that literally thousands of customers complain about every single day". That stuff gets sorted immediately.
Sure, ideally there would be someone internal advocating for a fix like this on behalf of customers. But Shameful isn't the right word. It's a miss like any other.