As far as I know:
-the airport fire service doesn't have the special equipment needed to lay the foam carpet quickly
-the amount of water at the airport (ICAO CAT7) does not include any extra for runway foaming
By asking for runway foaming, the crew ended up with a runway not available for a long time and with less extinguishing agents in the trucks at landing.
Is runway foaming requested by Carpatair company procedures?