The 0–100 score grades the video's central claim — the strategy as promised — not the person, and not every idea inside the video. A video can fail at 25/100 while one of its setups shows promise; the verdict card says exactly which part was judged.
Every rule is challengeable — that is how you know the verdicts hold. A challenge with corrected rules goes back through the pipeline, the file is re-run, and the published verdict is always the strongest evidence we have. No verdict is fixed in place against new data: files are re-verified as larger datasets land. What you read on this site is the result of that process, not the process itself.