The way to see if it's actually a fallacy, look for in-fighting between the two supposedly opposing camps of goombas.

I've seen internet commenters say China is overstating its economic numbers to look more intimidating, and that China is understating its economic numbers to receive more favourable WTO trading terms, but somehow these two camps never called each other out, which makes me think they're the same people believing that China is both overstating and understating.