FPV drones almost always attack one at a time. Like in competition, you can't miss fast enough or often enough to win. Accuracy beats speed and volume of fire every time.
Judging by the videos coming out of Ukraine I'd actually have no problem choosing a good trap gun over a crappy pump gun with a 10 rd capacity. Trap guns with auto ejectors can be reloaded fairly quickly and they are literally designed and optimized to beat small, fast flying targets.
Currently my pump gun has a 20" barrel with rifle sights and I find them difficult to line up quickly. They'd be totally useless against a moving target meaning the speed of the pump and the 8 rd mag capacity are useless. Give me a good front bead any time.