Worked for my family too.
We went on holiday and came back to find insty snr had been admitted to hospital with advanced & terminal stomach cancer.
I made one phone call to Innsworth and 15 hours later my brother had been brought back from Saudi and was at dad's bedside. Dad died a few hours later.
Both of us are ever grateful for the efforts of everyone involved in getting him back in time. I know dad was too.
He was flown back civvy as it was the first flight out. The driver supposed to pick him up was stuck in traffic so he phoned another station nearer the airport who sent out a driver who went and got him, he was met "airside" IIRC and driven straight up here, no need for him to do anything at all.
Once again a very public thanks to all involved in making an awful time just a bit easier.
So in my experience a brilliant system that should never be interfered with.