First off, there's still Blood Angels in the 8th edition story line. Second off, GW have stated via their community involvement that geneseed flaws still effect Primaris marines. Third, and most importantly...

What the actual fuck is going on with the timeline of these events? Baal was almost lost when the Rift blew the galaxy open and Guilliman showed up soon enough to save the day. GW mentioned that time was passing strangely around the Rift, the only way it currently makes sense to me is if weeks passed for Baal where years passed for the Crusade.

More questions than answers, considering anyone who read (even a synopsis of) Dante and knows of Guy Haley's follow up knew Baal was about to get nommed on by the Nids.