I feel like Github's Danger Zone strikes a nice middle ground between "total footgun" and Facebook's belligerent refusal to let someone immediately sever their relationship.
Actually, when compared to a breakup, the Facebook model seems even more silly:
"I just think this relationship isn't working, and that we should move on, and find someone who we'll be happy with."
"I'm really sorry you feel that way. I'll just continue being your boyfriend for the next week or two. If I hear from you at all during that time, I'll assume we're back together."
And specifically keeping a backup of my data prior to hard delete? On a continuum from worst to best:
Worst: Company as a matter of policy keeps my data around intentionally past the point of severing the relationship.
Forgivable: Technical architectural constraints mean that there might be some lag time before an "erase the tapes" process fully purges my data, with this limitation noted in the docs.
Best: Once I've terminated my relationship with the company, the company purges all my personal data.