I have to completely agree with this ban. Though even though Smogon and PC are pretty much sister-sites (aka PC will probably adapt these rules into the regular meta-game here/popular tournaments) the change might not happen here for a bit, but who knows?
Anyway, I have to agree with some of the people here, there is NO reason we should all be basing our team or editing members we love to use just to counter some shark-dragon-thingy. Sure, I have Ice Beam and maybe even some Ice types to get the stab, but guess what? The majority who do get stab can't stand up to Chomp's speed. I'm definitely NOT afraid of them, believe me, I have counters for them which I use quite often, and very rarely since I added these to my arsenal have I been "swept" or anything of the like by a Garchomp. In fact, it's the exact opposite. But the very root that he has such incredible base stats and can stand up (especially when one is equipped with the ice power-reducing berry which has been a common favorite lately) to a unstabbed Ice attack (also depending on where Chomp users EV invest) should be enough to say hit the Uber showers.
And you definitely can't compare Chomp to the likes of Metagross or really anything in the OU perspective. Again, nobody is afraid of Garchomp nowadays except newer battlers, it's just flipping annoying missing every other attack because smart Chomp teams ALWAYS come with a Sandstorm lead to kick things off.