Since the intelligence agencies’ operate is secret, the general public is almost entirely unable to make a reasoned judgement about the quality of its work product. The real and larger problem is the deliberate misuse of the intelligence agencies for improper domestic political purposes.
“... the general public is almost entirely unable to make a reasoned judgement about the quality of its work product....”
We can see where they dropped the ball with the Afghanistan collapse and the invasion of Ukraine.
And you go back into their history and it is one fiasco after another.