Bristow could call their bluff and say they are pulling all their assets out of Nigeria and thus leave all their National staff without a job. It would be interesting to see how that scenario would play out.
I think crews who entirety of experience consists mostly of pushing buttons to get from A to B are likely underprepared when the button pushing works no more. Which is why spending time in a real helicopter like a 212 is worthwhile at enhancing airmanship and other skills. And take away the GPS as well, give them a map to read, a heading to fly, and a time to keep.