They are very competent.
National security agency. They understand security.
The problem is usually around incentives… What is good for the national security may not be good for the individual and vise versa.
When the incentives line up, they are the good guys.
So when they talk about defending American infrastructure against state actors in the context of Russia or China, the advice is good.
When they talk about why people don’t need end to end encryption or why public cryptography is a national threat… The advice is bad.