Before making suggestions that AA emulate another airline, please learn how that airline actually works.

WN does have capacity control on awards, it's just that they're the same as the capacity controls on the lowest paid fares. The moment the lowest paid fares sell out, awards at WN jump to a much higher level.

If AA were to do that, what you'd see is awards at the current level only book Basic Economy, and once Basic Economy sells out, they jump way up in price. Is that what you really want??? :confused;

Remember, WN is a single-cabin open-seating airline, so any "copying" of a WN policy by AA would undoubtedly be greatly modified by AA to fit AA's multi-class system.

So please be careful what wish for, because a totally distorted form of it may come true (since what you wish for cannot come true in the form you wish it without AA becoming a single-cabin open-seating airline).