The samples I got from Markforged refute your point. They are identical parts, one in plain nylon and one in their chopped CF nylon. The CF filled one is notice

The samples I got from Markforged refute your point. They are identical parts, one in plain nylon and one in their chopped CF nylon. The CF filled one is noticeably stiffer. I'm not sure anyone is making the claim that the CF filled parts are comparable to traditional composite parts.