Pro's did/do still wear these, yes. Reimer, Luongo, Giggy, Enroth, Hiller. Probably a few more current guys that I'm unaware of.
I have a pair of these KOHO 589 Pro Swiss knee guards. They are amazing. I have an open knee cradle set, so the bulk works for me in my CCM pads. I've been wearing them for about 2 years now. Love them!