Originally Posted by corners
The majority of their "stability" gizmos are just attempts to stabilize the foot on top of the thick midsole. The midsole, being a block of foam, by nature destabilizes the foot, and so they have to invent things to bring stability back to the foot/shoe system.
Exactly, it is a reinforcement of the shoe. An attempt to remedy the problem that the shoe/midsole itself is. Then it is called "foot support", as if it was the foot that needed it.