The video posted shows Forstall wondering if the dead fish was a threat. He might be making this up but the situation is strange at best, confusing, offensive or threatening at worst. The person doing the hiring screwed up, and clearly did need to do better.

If you're of that view then why could you possibly think sending a dead fish to a candidate without checking first is ok in the first place.

And yes when I've taken my candidates for lunch as part of recruiting I always ask for any dietary preferences so i can find a place that accommodates. It's just commonsense.