So in response to this story I decided to delete my (premium) account with them. After confirming multiple times (good thing), I was shown this error:
https://i.imgur.com/4dpn6d5.png
How does error handling like this even make it to production?
I got an email as well confirming my account deletion and I can no longer log in.
But all in all this clearly does increase my trust in Lastpass's security competence.