Your comparison to fish during Lent is the bull crap.
The moslems are demanding that Subway-UK offer neither ham nor bacon and that the food they do offer be prayed over. BIG difference from having the choice of bacon or ham or neither, BIG difference from having their prayer over your food.
So cut the crap Pal.
A private company can do as it pleases especially if it brings in more money for them. I say bravo to the company. I am sick and tired to the freedom of companies being taken away.