Hi Pulse,
I agree with you, the parents should be spoken to, but certainly not over a tannoy, especially not as there seemed to be ample time for a quiet word.
But this seems quite a side-track from the original thread....
Is the airfield trying to improve its image through a "comments invited" page on their website, which is then being frustrated by the pedant checking the internet postings and/or is the same pedant being dominated by his wife at home so much that he needs to use the tannoy at his club to compensate? Check the staff car park for red cars!
It would be a shame.... We all love genuinely friendly aerodromes with warm and hospitable and understanding yet cautious staff........