One of the core ideas is to identify -- and even search out! -- people who you can collaborate with. For the people who will put obstacles in your way, either find a way to work around them, or find a way to align them to your team's goals. Avoiding open conflict is a big part of the message, and I'm sorry it didn't come through in the slides.
On the topic of "career-limiting" moves, that might be true, but I think there's some nuance. If you know what is the right thing to do for your employer, and you're afraid to do it because you might get fired, you're gonna have a bad time. My advice is to get past your fears and do the right thing and take some risks, or else buckle up for a career of quiet desperation that is likely limited by your avoidance of responsibility and the absence of meaningful successes.