SR71
Whilst I do not believe your figures are entirely correct, they are ballpark close enough. Your post puts this whole affair into perspective, and clearly demonstrates that BA have an ulterior motive here.
Your summation that there will be no strikes is a possibility. I think BA will play every dirty trick in the book to prevent the strikes; only then, if they fail, will they consider giving us our schedule K amendments. I feel if we actually go down the road of strikes, they will be long and bloody. I hope it does not come to that, but knowing the arrogance of BA, I would not be surprised if we waste a fortune, for no particular reason.
Either way, I think the end result will be the scrapping of Openskies. Then a short time into the future, BA will start using it's own resources, with no disguise, to operate the very routes that Openskies was going to do.