If by "recent" you mean in terms of the frame number, relative to the current frame, then often no -- there may be a long time between the action and the frame I'm at when it becomes clear I need to go back and tweak it, and there may be lots of intervening actions (especially in levels with multiple crowds).
Highlighting all inserted actions usually would be helpful, I think, even if there are others unrelated to the one I'm trying to tweak, because they are usually relatively few, and knowing both the type of action I'm looking for and roughly where to look for it, it should be easy to spot in most cases.
That said, I can see that highlighting the actions closest to the current frame may be helpful sometimes, so maybe the solution is to highlight inserted actions in blue and the ones closest to the current frame on either side in red?