The MSM tell the truth most of the time. Compare it to income tax forms, or a resume. Out of 100 items, there are only lies on 5 or 6 lines of the tax form, or 5 or 6 things in the resume.
It is their 95% accuracy that causes them to feel justified. They are accustomed to being graded on the curve. If all the other media lie then they have a passing grade.
95% accuracy allows them to successfully con a large number of the gullible.
I agree and you are correct. My post was an attempt at humour by wondering how they would respond to an attempt to prove that they were NOT all liars.