You bring up a good point. Dodson is now in Dillashaw's division. Why doesn't he call him out for his "revenge"?
Same reason Conor McGregor doesn't call out Joe Duffy or that flyweight who choked him out in 2008.
Same reason Anderson Silva didn't call out Ryo Chonan when he was on top of the world as MW champ.
Same reason Jon Jones didn't call out Matt Hammil.
Etc.
Onto bigger and better things.