The truck manufacturers are trying to make their trucks more car like in terms of amenities like heated leather seats and softening the suspension. Not at all unusual. The Chevy 1/2 ton pickups in the 1960's had rear coil springs and Ford did its odd split axle front end on its 4WD trucks and SUV's in the 80's. Ford and Ram are at a disadvantage in not having the IFS found on GM 2500/3500 trucks.
But from my reading Ram is not offering an air suspension such as is found on modern Land Rovers or the hydropneumatic suspension introduced in 1954 by by Citroen more than half a century ago. Ram is going to be offering an "air bag suspension" as an option which means adding air bags at the factory. If the price is less than the cost to buy them yourself and pay someone to install them then it makes sense for buyers who know they will want the airbags. It makes sense for people planning to tow 5th-wheel trailers more than for hauling around a camper.