It's always convenient when your argument boils down to he's good because I think so, and can't back it up with fact like trophies, mvps, ratings, or other achievements. But it's at least nice to know that if Aleksib wins something I'm able to use your own logic and claim the better igl was on the team he beat, you know because winning doesn't mean you're better than the other right?
Your high jump analogy is so bad I don't even know where to begin, yes Fosbury was eventually beaten but that doesn't work in the case of gla1ve/Aleksib, you might have a point if Aleksib was on his 4th major trophy and on his way to beat gla1ve in that, but he is no where near close to him and it's not like gla1ve and Astralis isn't playing anymore or something like that. They still win tournaments (unlike OG) and are still higher rated.
Second, Fosbury is still remembered (the jumping technique is named after him) in the track world, records come and go but innovators that changes the meta will always be remembered, who remembers who jumped the highest in '89? No one, but you know Dick Fosbury.