As usual, people have no idea of the complexity of software. Games are extra complex. Games that are meant to run on an infinite variety of hardware combinations are worse. And it’s not any game, it’s an expansive RPG with hundreds of hours of gameplay and paths.
It’s impossible to ship this kind of product bug-free, and it’s quite probable that it will never truly be bug-free. A day-1 patch is obviously expected, and bugfixes in the following weeks mean that devs are closely monitoring how it goes, and are still working full-time on it. That’s commendable.