Originally Posted by rickair7777

Could be that the OP is a CFI new-hire who is still on IOE and had a knee-jerk over-reaction. Could also be he was an old-hand who was familiar with procedures at the airport in question and made a good call. Sounds like the later.

But if I was in doubt, I would speak up early too...wouldn't want to be trying to get the FA's attention when they take the runway.