They didn't say it was an intentional backdoor. But if it were, the result would be the same. It's hard to secure encryption keys. If you had a backdoor based

They didn't say it was an intentional backdoor. But if it were, the result would be the same. It's hard to secure encryption keys. If you had a backdoor based on a key that you had to keep secret, leaks like these can happen. If Microsoft (or anyone) can't keep their encryption keys secure, they'd be equally unable to keep a backdoor key secure for the same reason.