Read the article then: it's quite interesting, and isn't actually 'about' homosexuality - that's just an example of the data interpretation.
After reading, you would see that it was actually dealing with USA only. States less tolerant to homosexuality had gay searches at 4.8%, more tolerant at 5.2%. Suspicion was that the discrepancy was covered by geographic pull towards tolerant states (gay people move to these areas, you see), but blows your 'especially if they come from communities or countries where being openly gay isn't tolerated' out of the water
I've had a look through, I'm still not convinced that it is a reasonable assumption re: similar levels of porn consumption... it certainly doesn't blow my objection out of the water. Just because some states are more tolerant (from a legal perspective re: marriage etc..) than others doesn't mean that society as a whole treats homosexuality and heterosexuality in the same way, the objection is still valid.
ref: Pakistan - forum rules prevent linking here due to the search terms involved but for example here are the results for 'man ****ing man'