"Locks are made to protect you from honest people."
Translation: anyone who wants your stuff bad enough will likely get it.
BUT, these products make it tougher for many, too tough for more than a few. It removes 'opportunity' from many scenarios.
I'm running a $20 set of Trans-X, take a pentagonal 'key'; longnose vise-grips and regular pliers could make short work of them. BUT, somebody'd have to be smart enough to figure that out. THEN, be quick enough to do it without me untwisting their head from their body.
I saw a sticker in a MTB magazine a decade ago, on a reader's bike pictured in it; the sticker said: "WARNING: This bike protected by EXTREME VIOLENCE!" Love to get one, If I could find it........