I have no drone in this fight, but your characterization of this quote is nonsensical.
The quote does not imply that the threats are closely comparable. It merely states that the current conflict is the "most sustained" since a past event which was obviously much more sustained.
I have stood on my roof and looked upward, and thought that it's kind of interesting that the next-highest solid object from my position is a plane, a satellite, or the moon.
I am not intending a meaningful comparison of the altitudes of houses and planes (or satellites or moons) when I do so.