> I feel like this is the biggest lie ever told in this industry.
It's not. I've been in a number of interviews where the interviewer has told me straight up "I didn't read your resume. Mind giving me a second to give it a scan?"
To be fair, as you mention, resumes are horrible tools. They should only be used as a place to start a conversation, so does it really matter if the interviewer reads it in depth before starting the interview?
Others in the loop (sourcer/screener/recruiter at minimum) almost certainly read your resume for you to even make it that far.
It's starting to sound to me like on both sides of this conversation, up-front effort made can be strong positive signal...