I have given this a bit of thought and I'm of the opinion that a wooden deck is probably just as likely to bring a prop to a sudden halt in such a way that the engine could still sustain damage.
Teak was used a lot for deck coverings and that is a dense, close grained hardwood. The wood was just a covering, I don't know how thick it was but underneath is steel plating.
Those are my thoughts on it but I may be barking up the wrong tree
*edit* I've had another thought. 2 in one day, mum will be proud. Might a spinning prop be more likely to 'bite' into a wooden deck and stop suddenly rather than just 'skip' off a metal deck?
We have some aviation experts on here, maybe they can shed some light on it.