That’s a different conversation, as a five tool outfielder plays every game unlike a pitcher and is no ‘mere’ outfielder (and I don’t know why you mentioned catcher). The best MLB players ever list will include plenty of pitchers regardless.
Donald doesn’t really change my argument here either, as a main reason he’s so great is because he can disrupt the QB - the most important position now. Mahomes and Donald are 1-2 in whatever order you want right now, but Donald will need a Von Miller type Super Bowl performance or two to get into the greatest player of all time discussion going forward.
Donald wasn't part of an argument, I simply shared who I thought was the current best player. And Pitchers don't get extra points for being pitchers even though you are not winning in the post season without an ace, it's by far the most important position group which is my point.