As an official statement, J-Novel Club and Crunchyroll could not agree on certain aspects of the relationship, therefore we mutually decided that us being included in the Super Fan Pack was not in either of our interests.
It's just PR. It wasn't a new issue, it's just that their greed has gotten so bad that it was affecting the simulcast viewers more obviously.
There were some comments from CR suggesting that it's not the case and you should probably wait (unsubscribing meanwhile would be justifiable too) for technical details. Dunno if you're supposed to fell better about that but apparently most of that regression was result of lots of technical mistakes rather than cost/quality decisions.
In case you find it unplausible, let me remind you that funimation serves 64kbps audio regardless of video bitrate which goes up to 10Mbps (i.e. in 1080p case they are "saving" 10MB per 1.6GB episode by making audio sound really bad), this audio was the only option for watching in UK and watching via apps for almost a year and it was already reported last summer.