That was a good read. The author makes a good argument and does it in an entertaining way. The textbook he quotes in the beginning was actually the textbook I used in undergraduate biochemistry!

That being said, the dogma exists for a reason. If anything, this process is a minor source of glucose (the blog post mentions that this is not a "cost effective" route of producing glucose) and only occurs during "extreme" diet conditions, like the atkins diet or starvation. However, most people on the atkins diet are not ketogenic, which they would be if they followed the diet strictly. Finally, as we see in starvation muscle wasting occurs as a means to harvest amino acids for gluconeogenesis. Using amino acids for gluconeogenesis is much more "cost effective."

TL;DR: The conversion of fatty acids to glucose may occur, but this process serves a very minor role and occurs only under severe conditions.