Oh, certainly they don't. That's why I fully admitted I may be "thinking too hard" lol :P
You really think 18 is herald level durable? Vegeta was outmatched for certain, but she wasn't stomping him effortlessly either.
Back before the forum reboot, there was some debate that Goku ssj2 during buu saga was superman level. Huge multi page threads. I don't want to get into another huge argument here, just fill me in, has that perception changed in my absence?
Edit: and that was exactly my point with goku. In base form with little to no power or stamina left, he could move, speak and break out. If it's a black hole it doesn't seem like a good one imo