It's likely just a tiny remnant of the old style of MMORPGs. A time when weapon types were relevant (blunt, slash, pierce, etc), you needed to skill up physical/magical stats, and the elemental wheel was a thing. It's not a big deal to keep obviously, which is probably why it's still around. A generally harmless thing. I don't think it'll be removed completely, but its relevance has long been dead in this game.

Even when you look at jobs with those types of things as points of concern, the problem isn't the existence of it, it's the balancing between similar jobs. It's pretty funny to me when topics related to job balancing are brought up. People want uniqueness but despise the idea that you don't have similar/exact goodies as other jobs and may not be equal to them in almost every way lol. It wouldn't shock me if, despite any complaints, people would be happy with homogenized and consolidated controls (e.g. PvP) as long as they have what amounts to a fresh coat of paint and visual flair.