Missing the bigger picture.
Quote I-FORD
"And we still don't know if the IB A340 made any preventive anti-ice treatment at the gate, disregarding the usual procedure in BOS that calls for it to be performed just after pushback."
It doesn't matter. If he did De-ice / Anti-ice at the gate and then is subsequently informed that snow & ice are still present then it requires the procedure to be re-accomplished.
What do you do? Reply with "Thanks for the info but since I already De-iced/Anti-iced I can continue with snow & ice on my wing?"