Don't be dense. The use of euphemism is what the OP finds objectionable. Leaving implies a choice. These people are getting booted and the company is using weasel words to gloss over the fact that this was a conscious decision that was made by people working for the company and it will cause harm to the people effected to the benefit of the company.
No, the OP just latched on the bait the writer laid out there. The memo made it very clear in the lead up to that sentence that management was responsible.
It's, like, using active voice. Like it's a thing the employees are actively, purposefully, doing or perpetrating. Of course it doesn't actually unambiguously say "and they've fully consciously decided they would like to no longer work to", but it's definitely language that's designed to, however ineffectively, not draw attention to the blatant fact that the company has chosen to fire people.
That’s kind of like pointing at the guy openly peeing into the pool and saying to those around you, you know, that guy’s actions aren’t doing him any favors of how we perceive him, then tossing your empty soda bottle into the pool.
Poor treatment of their employees (IT laid off then forced to train cheaper replacement staff) is more than enough reason. Any working person has solid ground to not be on the side of Disney.