Everyone wants to see Luke being a badass in the sequel trilogy,
Legends Luke was too OP and flies in the nature of the movie character, IMO. TLJ was a much more plausible Luke, but that’s a discussion for another day. Being a badass doesn’t always mean it’ll be a good and complex character.
everyone wanted to see Vader in action in the prequels (not 5 min),
Maybe? IDK as much about the fan community then, but was there much of a call to have Vader appear in Ep II or early Ep III?
everyone wanted to see Anakin and Obi-Wan being really good friends in the prequels, etc. (And they get none of this)
Clone Wars gave fans that to a significant extent.