On the same day a FlyBE Q400 used its prop to gouge a lovely trench along the side of Schiphol's runway, but the airline wasn't 'requested' to stop flying for the day as a result of the incident. Unfortunately Van Air seem to have been a small, out-of-country, easy target for the CAA. If they meet all safety and certification requirements then there was no basis to ground them even if one crew made an error of judgement; seems like one rule for the big boys and another for the tiddlers.