I'm not gonna go down the list, but any "looks down his nose at everyone without a degree" type mechanical engineer (you know the type I'm talking about) can provide you a litany of reasons that a zip tie gets inefficient at this scale and why other options are better.

This product likely exists because of a stupid bureaucracy somewhere that has approved zip ties but is such a labor wasting pain in the ass to deal with $75 zip ties are cheaper than getting permission to use more reasonable options.

Zip ties get used for lots of things, including as a part of the termination of flexible ductwork. In this capacity, they hold the outer insulating layer in place.

There are also other methods by which to do this, but some tradespeople prefer it.

Anyway, round ducts are girthy things to encircle. A circle with circumference of 48 inches has a diameter of just over 15 inches, which is not big at all in ductwork world.

(But such zip ties aren't shaped like the $75 wanktastic dumb shit that the article is about. They're just long.)