business unaffected by du proxy?

According to Khaleej Times...

A du official said yesterday, “With immediate effect, all pornographic web sites will be blocked as per the Telecommunications Regulatory Authority (TRA) requirements.”
[...]
"“du has blocked pornographic sites only, a move we are sure all parents will welcome. Content blocking guidelines are provided by the TRA and we abide by these,” he explained."
[...]
He also clarified that business will remain largely unaffected. “Normally business should not be affected because du has only blocked pornographic sites and sites that contain material that is offensive to the moral, cultural and social values of the UAE.

Despite claiming three times that only pornographic websites will be blocked (and also claiming only once that websites 'offensive' will be blocked) I find it interesting that on the 14th of April the following websites were blocked...

arabtimes.com = blocked
secretdubai.blogspot.com = blocked
wikipedia article on 'fitna' = blocked