I will be honest and say that I do not fully understand exactly how wind blowing against the direction of an object in flight effects that objects velocity.
It was my assumption that any flying object moving against a 120knot wind would get slowed down or have its motion effected by that head wind in obvious ways. If that is not accurate then I will happily drop that point.
For context, in the non-military market the fastest drone I was able to confirm has a top speed of just over 163MPH, while of course the military market has drones capable of just under mach 1 (or mach 2 if you count the QF-16 as a drone.)
As a small counter, I'm wondering what *you* think the speaker is trying to convey by sharing that information. He certainly sounds impressed by it.
What the general public call a drone is basically a remote controlled quadcopter, the US military as you pointed out has drones (UAV/UAS) that are basically full sized aircraft.
And windspeed is largely irrelevant to an fixed wing aircraft apart from in landing or if there's shear.
Yeah I am not sure what his tone is about, I imagine as pilot though watching a large aircraft just flying around without a pilot must be a bit odd especially if you are also wondering how long you might have a job..