TFA gets where it going by defining "pessimism" in a way that makes TFA's conclusions correct. It doesn't seem to be concerned with nuance. You can do the same

TFA gets where it going by defining "pessimism" in a way that makes TFA's conclusions correct. It doesn't seem to be concerned with nuance. You can do the same thing in reverse with "optimism" by pinning that term to an extreme version of it, which is obviously going to be wrong most of the time, while making "pessimism" the milder outlook that happens to align better to reality. Straw-manning, basically.