What...? Obviously, we can tell if a character has improved depending on how exactly he manages to handle himself against an opponent that should be WAY beyond him. And the way Roshi handled himself against Frost, despite being weak and recovering from near death, is superior to how any fighter that isn't many thousands of times stronger than a power of 139 should have been able to handle himself.Lord Beerus wrote: That's a huge leap in logic. It would have had some foundation if Roshi actually managed, to you know, to injure Frost, but that's not the case as he doesn't land a punch.
Demanding an injury as "proof" makes no sense since even if Roshi was at 50% of Frost's full power he probably wouldn't be able to injure him.
It means that the scene was portraying Roshi as the impressive one, with Frost not treating it or reacting the same way as the people dodging in your examples treated it or reacted to it. Not being in actually danger only means that Frost is indeed, without a doubt, very superior to Roshi, but it doesn't change the fact that the one portrayed as impressive was Roshi with Frost not reacting to it like it was as trivial as the attacks the people in your examples dodged.So because Frost was gritting his teeth while he was dodging the punches from Roshi, that means he was in danger? Even though we later see the context that not only was Frost never in any danger from Roshi's physical attacks, but was trying not to kill him by accident? Okay then.
Once again you are confusing things. My point was never that Roshi was a match to Frost or able to injure Frost or had Frost on the ropes. My point is that Roshi handled himself against Frost much better than someone who wasn't many thousands of times stronger than 139 could have done.I guess because Frost was grimacing from Roshi's assault that's all the indication we need to know that he was really on the ropes and would have been hurt by a weakened Roshi, even though Frost later clarifies the context of that skirmish with how he casually uppercuts Roshi with a smug grin on his face and swats him away like a fly.