Early on, my business relied heavily on Zapier in 2015 and they were just as big as Airplane at that point. If they sold the company and shut it down, I would swear never to do business with the parent company again. Yes I could migrate to something else or just code it if that were to happen, but that is a fuck over.

This is a bit late but yes, I believe you can "fuck over" people with a number of motivations that aren't necessarily "malicious".

For example I may be in a life boat with 5 other people and instead of adhering to rations I eat all the food or drink all the water. Because I can't control myself, I lack empathy, or I'm just incredible self-centered. Whatever the motivations I think many may describe what I did as "fucking over" everybody else.

Indifference can be malicious. Or at least it would qualify for fucking over the customers IMO. At least give them (and the employees) a bit more warning.