I can understand that the C/C TU might be worried that BA would implement shorter lay overs permanently after the health scare is over but they would be foolish to do so without proper negotiations and therefore are most unlikely to do that. I am surprised anyone with any common sense could think that under the current circumstances.
Are the pilots also worried that thier TU might do the same to them? I think probably not.
Sensible negotiations are called for when the health and welfare of crew is at stake, nothing is more important.
I was c/c for 35 years+ and in all that time I never saw anything implemented as a result of a one off concession even for commercial reasons that were for the benefit of the airline. This particular issue is about the health and well being of the crew and is obviously for no other reason. I would have thought the crew would be pleased to get out of MEX as soon as possible at the moment.
Let us hope none of the crew become sick as a result of this.