Once you're airborne all ETOPS (actually, EDTO) requirements fly out of the window, and all possible diversion airfields become equal.
Is always the case in EU? What if your EEP is downroute?
There are some operators here who declare EEP as wheels off, not 60 mins from an airport.
And FWIW the PROB 40 deteriorations below EDTO alt minima disappeared from our (AUS) regs two years ago. It used to state that you didn't have to worry about it. Now you need to consider any weather conditions.