I never used Traefik and have no opinion on it one way or the other as such. But if this is the response to some criticism of the documentation – which you can agree or disagree with, then you've done more to turn me of from Traefik than anything anyone here can write.
Right so; the way it was written implied that at least they had spent significant amount of time on it, at least to me (I tried a quick grep in "git log" to see if I could find them, but couldn't find anyone matching the username here).