Unfortunately, too many of these evangelical polemics are historically inaccurate, theologically misinformed, and missiologically misguided. Apparently, a lot of us simply dislike Muslims (usually without knowing any).It's a short piece, and covers a lot of books. So definitely no detailed refutations. Overall, sure. No need to demonize and only point out the wrong. Or (as is the wont of one of my email correspondents) take the worst violence and call it the "true face of Islam."
When we critique Islam, we need to be fair and accurate. Those of us who make Muslim-Christian comparisons must do so from a position of informed engagement, as those who have worked with Muslims. When we review historical tensions between the two faiths, we must apply rigorous historical analysis. When we write about Islam, we must remember that love is the greatest apologetic.
Incidentally, the author of this piece is a prof. at CIU in Columbia.
[In general -- and reducing everything to one's "take" on something is, well, reductive -- I tend to be bi-polar on Islam].