In projects, the chances of success decrease over time. The biggest risk factor we must manage is delay. Your project is conceived to solve a problem or capitalise on an opportunity. It is subject to a window or impact. If you miss the window, your solution is no longer sufficient and the opportunity is gone.
With processes, we improve over time. With processes, we must earn the right to change them. They have been producing outputs efficiently for a long time. They constantly evolve. A crisis is unlikely to change that. We can afford to take our time, test, consider before we implement. Our goal is perfection. Here, spending too little time is risk.
Projects kill processes or create new ones. Your goal is execution, not infinite planning.