Ummmmmm..... do you actually have an understanding of what collection is mate?
If you're referring to collection in a dressage sense which I assume you are, does that mean you are also implying that collection achieved while riding in a bridle is ridiculous? Because - if you had any understanding of the mechanics of collection and have read anything that any of us forum dressage nazi's have been preaching for god knows how long, you would understand that collection is NOT achieved through 'pulling on the reins', but is in fact achieved through creating engagement of the hindquarters. The rein and bit is simply used to 'complete the circuit' by providing the horse with a contact to work into. There is absolutely ZERO pull back pressure on the bit on a genuinely collected horse.
The 'pulling on the mouth' is a rookies version of collection to pull the horse's head in to a 'frame' to make him look pretty and 'collected'.