.... A guy who fought his way out of the sarlacc alone and unaided [which no one else had ever done prior] isn't cool? A guy who was running his own crews as a *teenager*... isn't cool?
OK.
Well, that's legends, we don't know if Boba escaped on his own or had help in canon. The way he went out in ROTJ was anything but cool.
And no, Boba Fett in TCW was a whiny little ****, he wasn't cool at all.