I absolutely agree, but so long as it remains profitable developers will do it. Skip a whole lot of QC, rush to release the game, then use the launch to gather bug reports and fix those. Costs saved not hiring a ton of QC testers, get a return on the investment much sooner, get early players to pay to be QC testers basically. It's a tried and tested formula now and it will keep happening until too many people won't pre-order games.