"it should be up to the airlines to decide how they want to handle it; things like passenger comfort and amenities are their domain anyway."
And they've done SO well with that so far, eh? They've handled it by (prepare to be shocked) monetizing it, 100% of the time.
Which means, I predict, that if the FCC allows inflight calling that they'll charge extra to allow individuals to make calls inflight, and if you're lucky, they'll charge extra to seat someone in a "quiet row" where calls are not allowed, so if you don't want to pay more you'll have the worst of both worlds: not able to make voice calls but having to listen to your seatmate chatter away, and them chatting louder to be heard about the high ambient noise level to boot.
But... by the same token that I don't like marijuana but want it legalized and prefer the fairer sex but support same-sex marriage and don't like annoying gits but am generally opposed to their murder, in this case I don't think the FCC or FAA should be regulating inflight cellular usage if it's no longer a safety issue. And really, isn't sitting belted on a plane the safest place on the planet to BE distracted, unless you're the pilot?