Sorry, but the existing requirements are ridiculous. I have FIs who do not meet the 25 solo sign-offs but who have thousands of hours as weapons instructors, widely viewed as being more demanding than a flying instructor role.
Just read some of the previous posts on this thread and it will be VERY clear - in case you didn't already know - that some schools collude with instructors to get them signed off in the shortest possible time, regardless of experience or ability.
Surely this is all about teaching ability. It should still be a test, and good people will get through, and bad people won't.