... between a small drone and a manned aircraft.
That was not a small drone - that was a giant-scale model airplane at an airshow. (The AJ Slick model airplane is 1/3 the size of a manned Cessna and almost 1/2 the size of the SA 750 Acroduster Too that hit it).
The biplane was not part of the airshow and landed safely with significant, but repairable damage.
That Slick would have still fallen under SUAS rules as it's in the 40-50lbs range. AFAIK the dimensions are unrestricted (could be wrong but I don't recall seeing that anywhere).
Also an instance where a <55lb UAV struck a helicopter in Afghanistan when the helicopter strayed into a supposedly sterile UAV LZ. No injuries or loss of helicopter. I won't name the UAV. Another in Germany when a UAV taxied into the side of a transport aircraft. I had a "near miss" with a CH-53 that was out of assigned area.
These occurred in highly controlled airfield airspace areas, with highly trained pilots and operators, and usually the manned aircraft was at fault by violating ATC directives. I can imagine how well things are going to work out with masses of untrained sUAS operators in a civilian airspace setting.
Our government integrated manned and unmanned aircraft in war time environments quite some time ago in order to learn how it could be done. That airspace environment is just as operationally dense as the busiest airport in the U. S.
I didn't hear about those, sounds like it's more common than I thought! Luckily nobody has been injured so far. My near miss was similar, there were multiple failures there. We didn't get a call that a manned heli was coming in, so either our MCT dropped the ball or they didn't know either. We had an observer outside, but since it was in the middle of the night and the helis didn't run lights, and it was noisy where he was standing, he didn't spot or hear it. Our IR nose cam has a narrow field of view, so none of us had any idea that he was there until I was about 60 feet off the ground and he suddenly appeared in view. I had my lights on, but on a collision course there can appear to be no relative motion, so HE might not have seen ME either! That's not something I would like to repeat.
I would HIGHLY recommend (not toward you, I know you know this already) that everyone planning to fly commercially (and as a hobbyist, really) know their aircraft's limitations inside and out and practice evasive maneuvers regularly. With the use of observers and our own situational awareness, any potential issues should be caught well before evasion is necessary, but you just never know. And always be mentally prepared to ditch the UAS if there's a chance of injury or damage to a person or manned aircraft. If a Mooney is bearing down on you at 180 knots it is not the time to agonize over the few thousands of dollars you have invested.
If you're a Phantom pilot, you might just have to dodge laterally, since by the time you get to the ground the manned aircraft will be a couple of counties over