There is a desperate need for Christian apologetics in Arabic. The translation of Peter Kreeft's Handbook of Christian Apologetics should be a priority.
Not familiar with your author.
Certainly Holy Spirit will have to mature people rapidly in this end-times era. Evidently He is doing so in many cases.
But materials--solid materials--Biblical materials and Bibles are super needed and cannot keep up with supply.
The latter part indicates to me that, as in China, the numbers are probably very conservative and outdated the moment they are calculated.