I know this question wasn't directed to me, but I'd like to chime in. I think it depends on the props. In cases where the props are front and center (Bluecoats since 2016) I do think drill takes a hit. There is less field to work with, therefore the drill is limited. Can it still be done? Absolutely, but there are more limitations and have to be more creative for it to work. It seems like the drill the last few years has been less and less impressive, with more focus on body movement and jazz running rather than marching and drill.
Nothing excites me more as a drum corps fan than to see a corps running all over the field and watching mind bending visuals with music. I am not sure that props are the culprit the last few years as much as it has been emphasis on body movement. Instead of a complex drill maneuver, they (visual creator) are relying on movement to create the impact. Cool drill moves still exist, but they aren't as crucial.
As many have said, drum corps is going through a change. Right now corps are playing with a new toy. Complex drill will return in my opinion, but it may take a few years for the new car smell of this movement to wear off a bit.