Not sure you understand. I didn't hire the seo company my self. They work on the same client. Also im not after the seo position, if anything i will be recommending another company.
Audits are not the same as patetoes. You shouldn't measure them in kg paper printed. This is not school where you get a + for good effort. You get a - for wasting peoples time with worthless trivia (mind you they mentioned minifiying js, but not gzipping, which is what really counts for improving speed lol)
Agree on the ROI though, if they are worth it, then by all means they should do more. However since nobody can comprehend their report it doesn't look like very high ROI right now.