I read that as: SACD customers expect a better mix.

The format is only relevant in that it requires audiophile level dedication and money to use the format in the first place. Not dissimilar to vinyl before its recent boom.

I have an SACD setup, but for what I want to listen to, everything is out of print and secondary market is insane. Players can be found relatively cheaply at thrift stores (many don’t bluray and multi-CD carousels support it with digital output).