I think Ellenberger is a touch overrated. Yes he has some power. But not that great or diverse of a striker. His wrestling is decent. Not sure about his BJJ. His gas tank isn't the best.
His record doesn't impress me that much. His best win, vs. Shields was right after Shield's father had died, an important person in his career. The Mike Pyle win was solid. Other than that I'm not really impressed. I don't consider a wild, inaccurate, average wrestler Sanchez to be as great many do.
Ellenberger has done nothing to prove that he can hang with the top guys.
A great chin with unlimited cardio will take you pretty far.