Advantages of massive probe scouting range, and hiding in bush early. Don't do it.
Idea here is that all bushes and half the map was visible from probe, which means they couldn't be there, by walking the other side i can see that they didnt move either, and thus deduce they are in the bushes.
The combo could have been more devastating, with a helio blackhole, but the idea is not to use all CDs in one shot, although it would work better in this case, but to bait some adrenalines