Not only did they fuck it up. It was implicitly used as a feature. If you can attach multiple email accounts to a service then of course you would attach your work email to it.
The real devious behaviour was assigning your entire account to another entity to manage and without your permission. I've had to create a new account, ask the enterprise account manager to remove my account, and move my cards to another account. I've been using the account for 9 years and created many small integrations. Why would I want to give that up? Now my workflow is broken because the Trello app only allows one login so I have to decide is it going to be work or personal that I'm viewing because I can't do both.
> the Trello app only allows one login so I have to decide is it going to be work or personal that I'm viewing because I can't do both.
If you're on Android, use Island or another app to set up a local Work account; you can now install a second instance of any app under the same profile, and log it into a different account. I'm unaware if iOS has similar.
> If you can attach multiple email accounts to a service then of course you would attach your work email to it.
Why? To me this is an obvious mistake. If you need to have sole control over your access to your account, then you should never attach an email to it that you don't control. You don't control your work email.