From an operational point of view, I can certainly understand that the initial decision is not to return to Kerkira as it's a short runway but to go to Brindisi instead.
But then when something is found with the engine (which I think is probable) the aircraft will be stuck there.
So when it's running fine the instruments show normal and there is no apparent damage, I would prefer to continue to destination (only when it is home base of course).
Based on your description I would have done the same thing as the RYR crew.