It almost sounds like you are excusing them. Asking people to switch to the enterprise plan and bring your own IP is reasonable, but not on a timeline of 24h, and trashing their account when they tell you they are talking to a competitor makes me feel like I should flee Cloudflare services with all haste.
It does not really matter, the 24h deadline is incredibly unprofessional. And deleting their account even more so.
I think the lesson here is to be as provider agnostic as possible and have a backup plan in case your current provider decides they don’t like you anymore or they just delete all your data just because they can.