if that's the case, then promo timing is key and.... Nutaku can pretty much say screw DMM in that case...
i'm sure there's some things we'll get in line with DMM (like possibly miracle tickets), but i highly doubt some stuff will match up with them...
that honestly seems far more unreliable than just gacha-ing for the weapons considering all the unknowns, even though it's very convenient if it does happen (cause old raid weapons have to be in the raid gacha later on that can give stuff you missed or they can use some SSR breaks too)