This sounds very odd.
Those that take Islam to the extremes won't use or allow an image of Allah's creations to be made. That could be the reason.
Most Muslims don't give a rats or actively encourage photos being taken.
I'm usually asked to take photos when anyone sees the camera.
86+% of Indonesia's population is Muslim. The only time I've been requested to delete a shot was some really odd blokes I met a few years ago. The reason turned out to me there involvement in terrorism as I found out when the police shot the first of them about a year later.
http://www.msnbc.msn.com/id/32383558/