I won't attack your love of RSM. But for my nose, the opposite is true. I see Turin rave about some scents that I can barely detect, or they don't last on me more than an hour.
I don't think his nose is desensitized. I think you have a very sensitive nose as well and find something you really like in RSM. Who knows what he's got against it. He just found it average I guess. Almost all of us own and wear something he would or has just as easily dismissed. He really crapped all over my Rose 31.
He hates half my wardrobe and I don't let that concern me. If he wants to start buying me his 5 star frags, I'm all ears.