Apparently, you can hate them on a deep enough level to where scuba gear is required...

Fair. I wouldn't car about the cash. But you aren't tying me up without a fight, weapon or not. Unless we prearranged the tie up :)

They probably have a policy that says “comply with anyone trying to rob the place,” and even if they didn’t they are insured.

This is the reason why. Follow policy and keep your job; violate it and get fired. Also, sounds like they were there just to rob the place - not really much danger unless you resist.

Let's do the numbers: Say they got away with double the top end amount (so $40,000). Given how much the park makes in a single day, and consider the extra money other parts of Disney make each day. Divide by how much of (just that one restaurant's business) each day is on electronic payments. Carry the one, aaand . . . it's way less than a rounding error.

No, as explained earlier, if you are tied up by an assailant, you are now at their mercy, has 0 to do with work