I imagine her main gripe would be that the free food was treated as a component of her compensation, and then withdrawn for the perfectly rational (but unrelated) reason of cutting costs.If someone did that to my salary (and it's happened a few times, for various reasons), that would generate a certain amount of ill-will.
It's also their fault. They made an offer they weren't planning on keeping. And they lose the most - an irate employee is a dead loss to an organization, but still gets a paycheck (until they more on or get fired, which takes a long time).
Well that's human nature people get far more upset about losing something losing $20 a day in free food feels much worse than gaining the same amount in pay.