Seriously, expecting any kind complex software to be released 100% bug free is just being naive, it is impossible. If you run into issues during the first few days after release you cannot be surprised, the devs are actively working to fix all the issues and 2 patches have already been released, not much else can be done. The plane has been in beta for a while, you could see A LOT of people flying it live on twitch without any of the issues you have mentioned. You can beta test as much as you want, in the end you will have more users than you had testers and therefore they will find bugs that have slipped through the cracks.
If you buy a hockey net with holes you bring it back for a refund, you don't go complaining to the manager about how they need to change their manufacturing process and quality control. That won't help anything, you just go to the store and they will fix it or give you another one. These things happen.