Is Josh Allen really this good or...?

I see all these list with Josh Allen as a top 5 QB in the NFL and I am like whoa Nelly. Is he that good OR did he just have a Nick Foles/Carson Wentz/Cam Newton abberationally good season never to be approached again in his career? Whose to say he isn't a one hit wonder. You have to have more than one great season to be minted. Goff had one dang good season and I don't remember them going gaga for him like this.