goat only means so and achievements. Nobody has more achievements than him.
If we would claim anyone as GOAT based only on mechanical skill - we could consider even Scream or some kid like Tenz, but it has no sense.
CR7 is GOAT in football while having not the same raw talent as Messi. But his hard work means everything, that's why he wins everywhere and not only in Spain.
Also, player's tops are mostly subjective even tho they're calculated with the same expression. TOP1 as a team isn't subjective, bc there's only one team that can win the tournament, and taking in fact that astralis was the best team in last 4/5 years, and device being the MVP of this team all the time, also being consistent before astralis was even existed, we can really say he is the GOAT.