I would love an LCR as a pocket pistol. It has all the advantages of my S&W 642 snubby, and a polymer frame on top.
Unfortunately, it's still just a little wide compared to the 380 autos (my current pocket carry). Problem is, when I carry my 380 in my pocket (hidden in a holster that makes it print like a wallet), lint gets everywhere inside it. Unless I clean all the time, this is bad: the lint could cause a mini-jam (failure to cycle properly) rather easily in a tiny auto, whereas a revolver wouldn't even notice the lint.
Further, pocket carry occasionally causes my slide release to pop. I've had to get into the habit of regularly squeezing the magazine into place, just in case. Not an issue with a wheelgun.