regarding this:
I did notice it too... when it comes to discussing rituals like pilgrimage and such, I usually read quickly, essentially skipping the verses.. but then again, how would verses describing a ritual or how long a woman should wait after divorce, be special?
Besides, that challenge of "brining a Surah like it" was it one of the early revelations (in Mecca?). I'm thinking that this challenge might only apply to all the Surahs before this verse... because quite frankly, the Medina Surahs, in general, don't sound as beautiful as the Meccan ones...
in any case, like you said, it's quite subjective.
Indeed, and as a piece of human achievement that is all one can expect. The Qur'an is at times outstanding, while at other times - understandably and excusably - less so.
But the Qur'an itself, claims to be the inimitable divine speech of an Omnipotent God - and challenges man on that basis.
The author is arguing that In this case we must hold it up higher than the very best of human achievement. We must hold it up to a perfect standard of a Divine Being who can literally do anything.
If it fails to consistently maintain that standard of excellence in beauty of meaning and wording throughout, then one cannot be blamed for questioning it's Divine authorship, according to the very challenge the Qur'an makes for itself.
Personally even when I was a Muslim I had long moved from the idea that the Qur'an was the literal speech of God to the belief that Muhammad was inspired in a way that transcends human speech. The Qur'an then become Muhammad's words - his divine inspiration filtered - and interpreted - through a human from the 7th century and all that this must entail. They are the words of Muhammad - albeit under divine inspiration.
That was the best I could do.
To be honest I think it is almost impossible for any intelligent Muslim to cling to the idea that the Qur'an is the literal speech of of God.