Pretty sure the deflected goal stuff was mainly a jibe by rival fans, much like calling him Fat. Of course some constantly hearing this decide to take it seriously.
Lampard is basically like van Nistlerooy, in that he's smart and does everything to precision. However, these sorts of players are never going to be scream 'world class' at you when watching them unless they're scoring goals. Theres nothing magical about them when you watch them. No powerful runs, no real dribbling ability, passing is solid/clever rather than spectacular, no real pace, no tricks, essentially nothing that really catches the eye. Just clever movement, clever passing and banging them in.
The problem Theo has is that, he's not smart and doesn't do everything to precision.