Beagle, IMO it's more that MOL is a very public CEO and that persona is indelibly associated with Ryanair in the public's eyes.
Trying to mentally disassociate MOL from Ryanair is always going to be difficult and this polarizes the arguments, we've got the principled I'll never fly Ryanair posters who only see MOL and the take a look at the safety record and what the airline offers.
MOL's legacy is imprinted on Ryanair and will be long after he's gone, all you can hope for is that at some point - objectivity will win.