Speedmaster Purchase on Grailzee

Hey gang, I bid and won a speedmaster on Grailzee. The seller sent the watch to the third party authentication company Official Time Watch. The authenticity report from them indicated pictures was taken on all parts with serial number and validated. The report only had the external watch pictured, not one pic of the actual movement. I thought this was odd and requested they add a picture to the pdf report since they already should have a picture on file. Grailzee makes it sound as if this is a huge deal and I should just pay the vendor and be happy with the report. Am I crazy or does it seem like common sense to want a pic of the movement in the report since? Should I just pay for the watch and just have faith the vendor looked at the movement?

Looking for advice.