1. It is absolutely NOT bit perfect from the 24/192 or 24/96 studio master to the user. No way. It is a lossy process. No one disputes that.
2. How exactly does the MQA process ensure the BEST available master? Using MQA guarantees you will NOT get the master, because it is a lossy process. And there is absolutely no guarantee in the process that it begins with the best available master in any case. It's whatever the record company happen to find or cares to use. Indeed MQA, in their pitch to record companies, explicitly state that an advantage of the process is that it does not distribute the "crown jewels" of the master to the public.
But I agree MQA works on many levels. Level 1: Obfuscation, Level 2: Hype, Level 3: Marketing bullsh*t, Level 4: Hand waving, Level 5: the secret brotherhood, Level 6: temporal deblurring.
Post of the day. Post of the year so far. You win the Internet or any of John's upcoming products. Your choice.