I agree, I don't tie the decision to fire Eberflus only to the performance of the QB. Just like I don't hold 2022 against him as the GM pretty much traded away any impact player on defense and they hadn't addressed the OL
If he is currently retained it's because of how he handles the team and runs the team. This won't change if the primary issue is the QB struggling.
If they retain him, he needs to be here for at least the next 3 years.