Interesting report, isn't it. Manages to say that the pilot got it wrong without actually saying that.
The aircraft overloading occurred as the result of an arithmetical error on the part of the handling agent but it was too small to influence the overall performance.
.
I'll buy that, since it was only 23 Kgs over.
But I don't buy the conclusion that, because under different conditions they managed to get a climb of 120 fpm at max weight, the pilot didn't try hard enough, wasn't properly trained and had a mindset anyway to go for the beach, nothing wrong with the aeroplane's performance.
Perhaps I'm too cynical but I see a commercially-influenced report that sought to sweep the known failings of the type under the carpet, because the alternative was to ground the fleet.
I know it's history, but what's not history is the regulators' propensity to that kind of - errr - collusion, because we don't learn.