I'm just an avid curling fan every four years (hows that for an oxymoron!) and am not trying to lay down authoritative pronouncements. I'm also not one of those people who just thinks that curling is easy and with 6 months practice I could be out there. I compared it to a three foot putt in the sense that the players at the highest level can typically hit that shot as an afterthought, but it isn't so automatic that misses can't and don't happen - especially in pressure situations. By curling standards, the Russian guy had a very large margin of error to land his stone and he ran it through. It wasn't even close.FWIW, I find that it's a lot easier to screw up a draw to the 12-foot circle than it is to miss a three-foot putt.
But I respect yours - or any of the others around here who have played and/or possess a more in depth feel and appreciation for the game - opinion, so if it was a bad comparison I'll acknowledge it.