So how exactly will they sell more detergent by insulting people? Your question must assume that they're willing to lose profit and sales just to hack off a segment of their market. I don't think businesses operate that way.
I'm sure they did extensive research with the average folks on the street before going with the name. I was wondering what the subset of religious minded people would think.
It seems that Unilever has correctly come to the conclusion that is evident here. The vast majority of people find that the name is cute in its somewhat hidden reference to the Almighty or don't think it is trying to reference Him at all. No money lost.