I'm going to use a specific example to illuminate a greater problem with QA testing of KSP2. In the most recent update solid rocket boosters were subjected to twice the throttle limit. This meant several of my rocket designs were no longer working. It's obvious this build was not play tested. The focus of the devs so far seems to be with QA testing (does x cause the game to crash) vs. playtesting (do the engines still work correctly). What the game has consistently failed at so far is to show me
Here's the bug report. I'm not saying bugs won't happen, I'm saying easily captured bugs should not have passed a play test. It's pretty obvious they are not play testing the game.