I think they were conflating EMP with directed RF weapons. The latter is a standard feature set for anything with a beam steering transmitter. Those can dump a

I think they were conflating EMP with directed RF weapons. The latter is a standard feature set for anything with a beam steering transmitter. Those can dump a lot of focused RF energy on a targets. That has been an automated defense response since the mid-20th century and would likely kill most drones. EMP is, of course, extremely inefficient no matter how you pump it.