Resil B. Mojares is a Filipino ambassador, historian, and critic of Philippine literature. He has a Ph.D. in Literature from the University of the Philippines, Diliman. A retired Professor at the University of San Carlos (USC) in Cebu City, he was a founding director (1975–96) of USC's Cebuano Studies Center, a pioneering local studies center in the Philippines.
Mojares is very knowledgeable about Filipino culture.
He is a historian, Ph.d in Filipino literature, an ambassador, and founded a Phillipines study center.  I think this would qualify him as very knowledgeable about the culture.  