There are two problems here - the volume of application spam ( which creates the need for automated filtering in the first place, and is now probably AI aided ), and the fact that there isn't a single decision maker.

You have HR which decides to outsource filtering, and then the outsourced company who decides how it's done.

The line managers actually trying to recruit are no where near this decision - indeed they don't share a common manager till you get to the CEO - who is too busy to care about this sort of stuff.

In my experience the only way to fix this is to tell HR that you want the unfiltered CV list and do it yourself. The problem with that is if you work at a large well known company you'll get 100's if not 1000's of applicants for any job you advertise and most applicants don't appear to have even read the job description. So you are committing to a very large amount of work.