There is no doubt that I, also, had long been aware of the problem, i.e. producing X-ray interferences, before the inherent difficulties had finally been surmounted.
The world is not dialectical - it is sworn to extremes, not to equilibrium, sworn to radical antagonism, not to reconciliation or synthesis. This is also the principle of evil.
Sometimes his methods are questionable, and even his morals are questionable, but his intention is always to protect Sydney. So in that way I think he's a good parent.