Right, I'll find a way to make damage more clear on the scarabs. Thanks for the suggestions!
>Do you have any thoughts on if there's anything that could make this encounter more interesting? Less confusing? Better?
I have a tiny comment about this. When i first beat them one fell down on the path of the rolling platform. It would have been immensely satisfying if the rolling platform actually crushed the scarab, instead of clipping through. Maybe this could even be a mechanic later in the game, to actively need to whip some enemies into paths of platforms.