That's swell. But Mombasa being accessible and a possible travel destination doesn't mean anything with respect to why Ann Dunham would want to travel there for childbirth. The world is filled with accessible travel destinations, and I don't see anyone insisting that Obama was born in Venice or Paris or Rio.
Why a city with no international flights where neither she nor her husband had any family, in a third world country halfway around the planet? Instead of, y'know, the hospital down the street in Honolulu?
How do you know she flew there for childbirth?
Maybe she flew there for the creature comforts...
Or maybe you are right, she flew there because The British had a first class hospital there for their citizens.
Why? A country that had a modern International airport in 1961 with regular flights coming going. And when statements from credible sources pop up all the time like this one below from a Kenyan Minister that said Obama was born in Kenya that cannot be BS'd away: