Or they work in a regulated industry that requires pseudo-airgapped machines for remote users, e.g. the machine actually interacting with the systems needs to be within the controlled boundary but the company has a presence in multiple locations, so the solution is to have a Citrix server that the users remote into. But because the SSP also has access control requirements at every stage that take a long time to get updated to newest industry standards, the user still needs to have passwords rotated, MFA, and all that kaboodle.