Spooon,
You're right of course. This is actually a message to the taliban from within the Taliban itself. You see, there are moderat taliban members, and there are radical members. The moderats were gaining in popularity, with the country being in a shambles and everything, so the radicals threw down the gauntlet and said "to be a taliban, you must strictly follow the koran, and it says blah blah blah". What they (the radicals) did was test whether the moderates would take a pro-rest-of-the-world stance, or a taliban-whacko stance by forcing this issue. The moderates had to tow the hard-line taliban line, for now, because they themselves were facing imprisonment and possibly execution within the taliban itself.
So, this whole thing is a lithmus test for taliban loyalty. The unfortunate thing is that the whole world, and even the arab world, will further isolate the afgahns because of it. And with the drought and other regional problems, millions will probably die before sense returns to the region.