You are really, REALLY underestimating how incredibly low the chances of inputting the correct commands, in sequence to finish those puzzles is.
The 12 lefts in a row without a single down will seem like a happy memory in comparison.
Even if we had an entire squad of 100's with us, the atrition of wasting PP on the wild pokemon will force us to use STRUGGLE, which damages the pokemon that uses it, eventually killing the team and restarting the entire process ALL OVER AGAIN.
This isn't a matter of having faith we'll make it; It's pure maths.
The heat death of the universe will occur before we finish this.