I disagree. He titles the article "Why ask why" and yet he anwsers this question himself:

"Never make the mistake of asking for rationality here. And never underestimate the power of theocratic propaganda. The fanatics look at the population of Bali and its foreign visitors and they see a load of Hindus selling drinks—often involving the presence of unchaperoned girls—to a load of Christians."

Good, that's a way of seeing things, and as much as he has a point, it dosen't mean he is right. And finding the reason why this is done is part of the solution. It's not making an excuse, these things are not excusable, it's looking for the root of the problem. Looking for the root of the problem is something far more complicated than simply saying "they are fanatics".