The author's intentions are good. Of course, there has been much development around the Holy Mosque already which is something that, unfortunately, the paper doesn't address at all. I don't understand why as this would provide good arguments to support the guidelines that he/she proposes. Indeed, some (if not much) of the new massive ("Las Vegas" type, nearly sacrilegious due to its capitalist/profit seeking objective) development nearby the Holy Mosque (those huge and tall buildings) would make the case for the three principles the authors put forward all the more clear. But, a critique of the poor development done is in order.
The guidelines are reasonable. I must say, however, that I find the diagrams very helpful and clearer than some of the guidelines themselves. I appreciate the offering of a design example of the potential (I would say maximum scale) of applying such guidelines but it'd have been nice to dig a bit deeper. A conclusion was also necessary.
If the article would address some of the above, it'd receive my full recommendation for publication ... as it is, I am not sure. I'd leave the decision to the people running the conference. At the very least, I'd ask the author to address one of the weaknesses mentioned above.