The cost of internet access is really low in India. For less than $2 a month, you can easily get 500MB/month of 3G access [1]. Even cheaper for $2G access. The cost of a getting a phone is the bigger barrier. But in Facebook's world everyone already has a phone but cannot afford internet.
The example Mark Zuckerberg usually talks about is US where it costs around $2000 for a plan over two years. Which makes it makes a convenient case for Free Basics.
It was disappointing to see how major publications are just re-iterating FB/Zuckerberg words. The only journalism I saw was from Buzzfeed[2][3] and Backchannel[4].
[1] http://www.plansinfo.com/reliance-gsm-prepaid-mumbai-plans.h...
[2] https://www.buzzfeed.com/carolineodonovan/heres-how-free-bas...
[3] https://www.buzzfeed.com/alexkantrowitz/how-facebooks-plan-t...
[4] https://backchannel.com/how-india-pierced-facebook-s-free-in...