It's an interesting idea, however cost per "shot" is going to be really high still. Alternatively how do you decide what to keep up in orbit on standby for delivery, how long can it be in orbit for before use-by dates are reached on perishables, etc.

The article has a scenario of a Special Operations team somewhere deep behind enemy lines needing immediate resupply in a contested airspace environment.

It's very Helldivers.

This sounds like a thinly veiled weapon? Sure, we'll call it "supply capsule" so that there is no public outcry and our engineers don't quit, but once the system is ready it'd be as simple as removing the parachute and putting explosives instead, or even a nuke.