When kids parents are demanding

So, I went with my LO to a kid‘s birthday and their parents had baked a couple of simple cakes. But, 1 mother had told the host her child shouldn’t have cow’s milk, not because she’s allergic but mother’s preference. So the cakes were all made with almond milk and hadn’t turned out well. That child only ate one bite!!!

Isn’t it fair to let the guest with their preference bring their own cake instead of making the host do it?

I know already I’m not going to get a long with some momma’s in the daycare group because this is something I won’t tolerate.

FYI: the parents (host) actually told me this and were annoyed about it, I wouldn't have known about the cakes otherwise. Their daughter is 2 years older than ours is just our next door neighbor and invited us.