Treated lumber is a thing, and in my experience it's harder to light than carbon fiber and resin.

My garage almost burned down once because I didn't notice sparks from my angle grinder were pooling on a CF/R panel, and it set off a couple other things (paper towel bar, shop towel, solvent residue close to the towel) while I ran to the extinguisher.

This "article" is just an ad, and shouldn't exist without actual journalism going on, but let's not pretend wood can't be fire resistant.

did you reply to the wrong comment? i specifically said that i don't think wood in the blades really makes sense