Actually, Riddell helmets are made with double snaps to maintain security and ease of placement and removal. These can and must be properly adjusted. However, there is a reason why they are snaps and not easily removable
lockable fasteners. They are made to pop off under extreme conditions.
Furthermore, until the past decade, helmets were cushioned with leather, foam rubber and suspension strap systems. Today, the helmets use a more complicated
multiple air filled ballast system within that must be maintained at very specific inflation points. If these are not properly filled to correct fit, it doesn’t matter how tight or how many chin straps are applied. The helmet will fly off.
And, of course, if the helmet itself is not of basic proper size, the attention to all other factors are of mute importance.
Bottom line, it is the player that must be vigilante in maintaining all elements of his helmet’s fit.
Here's a Riddell video explaining some of fine points of
Revolution helmet fitting.