I totally agree. I carry chambered myself. But the meme is more about the people who haven't even thought about it and just repeat what they've been told to believe.
Frankly, when I first realized how fast your draw to first shot could be even unchambered, I seriously considered switching. And I think everyone should consider it, instead of knee jerk ridiculing unchambered carry.
That's nice. I don't really mind if you carry hot. I do to. I'm just bugged by the people who insist you're going to die racking the slide when you can get a round off in barely over a second without one in the chamber. It's not the way you carry, it's the way you train.