Agreed, but they haven’t updated the beta in years. They “don’t have time” but of course they do have time to show every single game journalist a different build.
GTA V on PC was delayed by years. It constantly crashed on release and had several game breaking bugs that made the main missions unplayable because it would crash 100% of the time when you switched characters.
The problem is that letting loose a million people from the general public onto a game will always find more on the first day than a developer will find in house in a year.
They announced a release date, and they stuck to it. They will fix the bugs, and presumably work on the features left out to make the date, as well as solve balance issues.
Again though, if given the choice, I’d prefer they release it, even if it was only to backers, but this kind of release now, patch later, style is the way games are made these days.