RJ flat out said that in the world of WoT, homosexuality was totally fine, so logic and world-building dictates that we should have seen the occasional openly gay man or women throughout the series. And while we do see plenty of lesbians, we never once see a gay man while RJ is writing.

I'm not sure why RJ couldn't have just made up some in-universe reason as to why female homosexuality was okay but male homosexuality was not (it wouldn't be the first double-standard in regards to gender that we see in the series, after all ) if he only wanted to show lesbians, but he didn't, so we're left with a world that should logically contain the occasional openly gay man in it but instead seems to keep them all hidden in the closet.

Because of this, putting in a gay man as a minor character seemed less like it was caving to PC pressure to "PUT A GAY MAN IN THE SERIES BECAUSE THEY SHOULD BE REPRESENTED" and more like a (rather late) attempt at more consistent world-building.

It was a Saving Throw, sure, but I don't fault Sanderson for trying to illustrate a facet of the world RJ claimed was always there but was nonetheless rather squeamish about showing.