Why do people have such a hard time with cause and effect?
When you're losing, you have to pass, so you throw a lot of passes. Usually you lose anyway, because, well, you're already behind. That's the large majority of 50-pass games.
When you're winning, you start running the ball a lot, so you end up with a lot of rushes and rushing yards. Usually you win, because, well, you're already ahead.
If you can't understand the difference between most 50-pass games and what was happening last week (and why it happened), you need to watch more football.