This is correct, imo. They use them not because they are looking for a secret sauce, but because they are in the family of "dynamic" measurements that are based on the way price is developing, as it happens. They do not trade with a single ticket mindset, cira 1960.
They are one of MANY such types of measurements. The Algos monitor many of then and make decisions AFTER evaluating them. A trade with a single ticket mindset, makes one evaluation (e.g. Fib level), and then decides to trade and hence it works or not.
It looks like "magic" to the caveman.