No, not many wildfires on offshore oil rigs, at least none that are fought by helicopter. No buckets, no long lines, no slingloads of any kind, just straight and level to the rigs and back. But we were on government contracts, so we had to be carded, even though the check pilot had never even seen an offshore rig, and had no desire at all to fly over water.
So who is going to apply carding to EMS? The US government isn't a customer or contractor. USFS carding applies only to US government contracts. Nobody else is affected.
Now if the US government wants to take over all air ambulance service, and card the contractors, it might be possible, but that won't happen this year.