When KRU first came to the scene, they were pretty good and decent. Its just that at the first international tournament, them along with the other LATAM teams got wiped by the NA and EU. They then started doing decently well and only lost to the teams that would either go on to win the tournament OR finalists/deep elim runners. They qualled for most internationals but have never made like a deep elim run. KRU's been solid with moments of brilliance and I think people underrate them a lot just because we havent seen them get hardware or make consistent improvements.
IMO KRU is like one of those teams in the middle of the pack that can certainly be one of the best, we just have yet to see them perform