I'm confused about the Dirk: Synchronize flash. I was told that Jake kissed Dirk's severed head to wake Derse!Dirk up, but Derse!Dirk was the one to wake Jake up to kiss his severed head. What was the point if Dirk was already awake?

Time shenanigans. Dirk had to wake up Jake so Jake could wake up Dirk so Dirk could wake up Jake