No one else was anywhere near as big as those two were they?
No but it never stopped Merlin, Ribble, Parkers etc price matching or just being cheaper anyway. So there’s still competition.
But wiggle’s range is comparatively lousy (for mtb certainly, might be ok to good for road)
DHB is always a bit roadie focused, but then a lot of CRC’s brands are little more than a label they stick on catalog parts anyway, I doubt anyone would really miss nukeproof, da-bomb, vitus or any others.