Ah, I didn't see that the article indicated that this only occurred on automatic reboots. Between this and the other article it's not clear if it happens on every reboot or not, but if that's not the case then this is indeed somewhat less severe.

Regardless, if you're willing to wait for Patch Tuesday, then FDE can already be bypassed by means of another bug: https://www.theregister.co.uk/2018/09/25/bitlocker_suspensio...