I am a licensed engineer and I would not author a report to an AOAO that said you don't have to comply with all of the fire safety parts of the International Building Code.  If I did, I could be liable for any incidents that occurred in that building.  The risks could include loss of my engineer's license (thus my livelihood) and injury lawsuits.

It is easy for someone like Mr. Bratakos to offer such a suggestion when he has no skin in the game.

Fire sprinklers are the standard for high rises and anything else violates nationally recognized standards for life safety.

By the way, I do not design or build sprinkler systems for a living.  I have no profit motive here.