The article is about the USE of Twitter by those in Turkey who needed assistance, and how online volunteers were able to help with the rescue efforts - even though both Twitter and Turkey were initially obstacles to those efforts.
Before the 2nd large quake "hundreds of Turkish developers, coders, and online volunteers had already organised themselves" into disaster management support for people who were trapped or had loved ones trapped and sent their information to Twitter so rescuers would know where to look.
No API access on Twitter blocked the efforts. Individuals at Twitter helped overcome that problem. Then the Turkish government temporarily blocked Twitter because of "disinformation concerns". Even so, Twitter and the volunteers were able to assist with the rescue of trapped survivors who were able to report their locations.