Ruling

[Talking Poker]

I'm not sure exactly where the line is drawn. It's probably: "within a reasonable amount of time" - which clearly, waiting for 5 players to act is not.

[Robbr25]

I would say incorrect ruling as well.
I would say it also depends on the timing of things.
How long was it from the flop until he spoke up ?
Was he paying attention ?
At most I would say once 2 check after his turn it is too late for him to bet.