Firstly, from a personal point of view, I don't think any club should be punished for any breach of FFP/PSR because I don"t recognise them as legitimate. I believe they are the biggest fraud ever perpetrated on football.
However, given that we do have them, it is the actions of the club at any given time that are under scrutiny. It is a separate legal entity in it's own right. The fact that the current directors were not the individuals responsible for the club's past misconduct is not, in my view, relevant. It is simply mitigation concerning their personal roles. The club still gained a historic advantage, if that is the argument, and should be punished accordingly. Stupid, but that is where we are I'm afraid.