There should be a third bubble in the venn diagram for something like "frenzy is poorly designed given how 5e works". There's never any real need for players to kick it into overdrive & pull out all the stops to blaze through a fight faster than autopilot on cruise control. Even though frenzy is a significant boon of a second or third attack for the barbarian, it's a significant but pointless boon with an actual cost. I like the new exhaustion mechanics but don't think that they are the right lever for frenzy. Link frenzy to hit dice or something instead of creating a reason to justify adding ways to mitigate & sideline exhaustion as a useful mechanic.Slightly off-topic, but I was just reading the thread about One causing a divide, in which a poster made a mocking comment about how the 5e philosophy is “give players what they want.” It’s a pretty common sentiment.
I can’t remember who posts what, but I’d be kind of curious to see the Venn diagram between “5e caters to casuals” and “Frenzy is too punitive.”