Haha no! Ps2 doesn't count xD
Actually, I'd say it does, and it's better/more meaningful.
For most of us gamers that have been playing before XBOX Achievements/PS3 Trophies, we would try to 100% a game for fun.
Now days, it's the trophies that drive people (me included) to try and 100% a game.
Hell, most games don't even require you to get 100% completion for the Plat.
I just got platinumRE6 today, and am only something like 30-40% in the completion percentage.
But anyway, congrats on the platinums