I tend to agree, this is probably better ranked at 5kyu, though 6 isn't too far off, to be fair. While it has so few solvers, re-ranking is probably still very possible, though I would discuss this with the discord first to get a better idea of the average user's perspective.

@WestwardLand968: Actually, they can be changed. Number of katas have been reranked or deranked. However, this involves kazk's assistance.

@Nickkk: I agree with you, but I don't want to undertake "the administrative part". Raise this via a GitHub issue, if you want.

Regards, suic

Rank can't be changed