My issue isn't with Kuchera itself - it's a tool that attempts to boil down the prediction of ratios into an algorithm even though there are an exponential number variables that feed into that equation. It's simplistic and flawed (as is every other model) and should be taken with a grain of salt but I understand the intention and it at least makes an attempt at prediction.
Therein lies the skill of the forecaster. We do see 'lazy' forecasters (present company excluded lol) giving it a bit too much weight.