"they" (ie the industry) have tried this in the past. Gust load alleviation to improve something (maybe reducing cabin/passenger turbulence, maybe improving cruise performance, maybe reducing structural weight) has the unfortunate side effect of reducing crack growth retardation (by reducing the gust overloads).
Admittedly this is with Al wings, and now they've gone composite maybe the lesson is different ? But it worries me when they try to remove weight in the primary structure … I'd look for weight gains in the secondary structure, interiors, and systems. But then I'm a structures guy (not a systems guy).
another day in paradise, or is paradise one day closer ?