Found vulnerabilities faster? Rewritten it in a safer language? Made a safer doas-like subset compilation target? Made it harder to trick a single person by having more eyes on code reviews?
All the other things you mentioned are just things you personally wish for but may very well be undesirable to the project.
That would be a valid point of you actually said it would be and why, not that it may be. It may also be desirable. Now what? Would the project benefit from more maintainers because there may be desirable improvements or would it not because nothing may be desirable, it's literally fully secure and feature complete?