It really is very simple. Cameron either achieved 'fundamental reform', or he didn't, for fundamental reform is what he assured us he would achieve, and what he tried to sell his package is being.
He fundamentally failed to achieve anything remotely close to it. Effectively, he didn't even achieve the the things that he ostensibly achieved, because they were largely subject to treaty change and unanimity. It was never going to happen.
To point this out has nothing whatsoever to do with 'superiority' or "entitlement' (seemingly pfm's new insults du jour), it is plain, simple, stark fact.
You are of course entitled to believe that the EU didn't and doesn't need reforming, fundamentally or otherwise. That is your opinion, and I respect it, though I profoundly disagree with it.