I think there's something to the idea that if you play chess, watching classical feels more familiar, and you have more of a sense of "what would I do in this position?", or "oh, why did they go here instead of there?"

Whereas watching Fischer Random you're just kinda shrugging like "i have no idea what's going on but they're Super GMs so they must know what they're doing."

definitely also true;

There was a tournament a few years back where players played like 1 hour of 5 minute games; 30 min of 3 min games; and 15 min of 1 minute games. That was incredibly entertaining