In the defense of bore, yes they do play test, but they can’t test potentially 200,000 people or more playing at the same time. And yes while they may have found some bugs with couple of them playing, there is no way a group of play testers is going to do an action.
Plus if feel like they were lazy or didn’t care they wouldn’t add this many new features, a new sever client, and do same day patches for exploits. Plus they lost a lot of workers and are working at home, and I haven’t had any bugs yet that I have know of, but that’s just my experience.