Let me stop you right there. Are you seriously talking about predictable when talking about a non-deterministic black box over which you have no control?
Predictability and determinism are related but different concepts.
A system can be predictable in a probabilistic sense, rather than an exact, deterministic one. This means that while you may not be able to predict the precise outcome of a single event, you can accurately forecast the overall behavior of the system and the likelihood of different outcomes.
https://philosophy.stackexchange.com/questions/96145/determi...
Similarly, a system can be deterministic yet unpredictable due to practical limitations like sensitivity to initial conditions (chaos theory), lack of information, or the inability to compute predictions in time.
Having used nearly all of the methods in the original article, I can predict that the output of the model is nearly indistinguishable from a coin toss for many, many, many rather obvious reasons.