When we're at the point where we're debating what a wrestler should or shouldn't wear, then I would say all hope is lost here.
Gone are the days of the outlandish costumes, thank God, and the traditional latex speedo's. You see a lot of wrestlers these days wearing I think what makes them feel comfortable, ans who's to say that Ambrose isn't comfortable with what he's wearing.
Luke Harper wrestle's in jeans and a muscle shirt and I don't hear anyone complain about him. Bray Wyatt wears white pants, although I have no idea how they stay so white, mine never do. And Eric Rowan, what he's wearing is just horrible, but you don't see a debate raging on the Wyatt's attire.
Cena wears long shorts, Kane a business suit and Rollins, well he looks like a power ranger of sorts. When you look across the roster you pretty much see a spectrum of everything there is to see. I'm okay with that.
I do take exception to that stuff that Reigns up on his get up though. It's hideous and it should have been left as plain black riot gear. You don't need any embellishment on it. Ambrose is fine and it suits his character. Quite honestly I would rather look at Ambrose in a pair of jeans, than watch Randy Orton walking around in what he wears. A grown man wearing a t-shirt and a speedo just seems out of place, and looks like he forgot to put his pants on.