Bikepacking - a viable alternative to racks & panniers

Bikepacking saddlebags were designed to hold predominantly soft items that can be cinched down really tight, they also require a minimum amount of said contents in order to function properly and not swing like crazy. They weren't designed for carrying random hard objects.
This is why I see so many people riding around with bikepacking saddlebags flopping and swinging about behind their saddles,with hardly anything in them. They've become fashionable, but for a lot of people aren't the best choice.
A full frame bag would make more sense if you really have to carry it on the bike, but even then it will need to be well padded.