You are only looking at things at the digital side… there is also the analogue filtering required… as per his articles.
The gist of his articles is higher DSD rates like DSD128 makes analogue filtering easier (but there is a sweet spot in performance, something in between DSD128 and DSD256).
With something like an RME ADI-2 PRO FS A/D, recording in DSD128 and DSD256 is easy these days.
So if we can do technically better and it’s easy, why not?
No problems with releasing SACD discs for those that want disc but why not record at DSD128 and sell those files to those that wish to have them?
Like NativeDSD.com offer
These questions are to Paul, not you…