Fair enough. I think it's equally easy to talk up managers who win the league with Real Madrid, City and Bayern because the only argument you need is "they win".
I guess I half-agree with you in that I agree that many tend to overpraise Howe, but don't agree that he's done "not very much".
So far though, calling Arteta someone who brought a midtable club into European competition is probably much more apt than comparing him to Pep and Klopp.