If your logic is sound, and strikeouts are bad for run scoring, it will show up at all levels. So to make sure, we can't rely on the few dozen (your estimate) 14+ K games, we need to look at all games.
Is that acceptable to you?
If you won't accept my terms, won't negotiate the bet at all, and you won't answer my question (are you arguing that teams that strikeout less score more runs?), I'm going to take it as an admission that you are wrong and move on.