Yeah, the foam baffles are super flimsy. Anything other than pushing them straight on perpendicular to the nails would absolutely ruin them, so I was lucky in that regard. I also had batt insulation (since replaced) so moving around was a lot easier than with blown insulation already in place.
Yours looks fairly well sealed below the baffle too, which will pretty much eliminate the chance of blown insulation wind washing. I plugged the gaps between the top plate and the baffle as best I could with rockwool, but because it's air permeable there's a small chance that my insulation will shift over time.
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