Sadly the people who have an agenda against rio and blame their lack of getting into keygroups for it will never listen to any reason or take in any explanations given.
We have shown that it is a pure reflection of a person’s experience in mythic plus, that it shows leaders specific information about the key they are applying to, how many keys they’ve successfully done in various brackets. Like you say it’s just a glorified armory.
PuG content should not become auto queue content. Anyone can build up a score if they want to. If all they care about is doing a weekly then they are free to do their own key every week or just list theirs as a ‘weekly no leavers’. Those groups rarely even care if they time it, they are just after the weekly chest reward in our hub.