Peer review and corrections are indeed important, but many have lost respect for traditional news media due to the selective reporting that they feel pushes a certain narrative.
I believe your comment is spot on mate. "Traditional" news media may even "lie less" than the average political blogger and the likes, but they have an army of competent communication boffins who know how to extract whatever conclusion they want from any possible fact. Also their oldest trick is simply selective reporting, which allows any individual piece of new to pass even the most strict peer reviewing, while retaining some neat control over what data will be used by their viewers when formin their opinions.