Riot, I think you worry too much about runes that work, and not enough about runes that don't work.
Just the fact that people still use Celerity after all of its nerfs indicates more of a problem with the other runes in the tier imo. We're in a meta where a rune (Transcendence) that comes online after the laning phase is not appealing to many people. As for Absolute Focus, I'm not sure how many people use it but I think the only real issue is it doesn't appear to be reliable and while it might actually be really good a lot of people don't feel comfortable with it.
Now let's look at Resolve really quick. Currently Bone Plating is slated for replacement because it's the only one anyone takes in its tier. But really is it that strong of a rune? No way. It's very easy to proc it uselessly and wait 3 seconds without engaging in lane. Later in the game, at least personally, I haven't observed any scenarios where I was like "wow that guy only lived because he had that stupid rune!" I've simply never seen that. So look at the other options in this tier. We have Demolish which is non-combat which makes it niche. If you're not focusing on pushing it's probably just not the right choice and that's fine. Then we also have Font of Life, which is uselessly undertuned. Personally I would be way happier to see this rune replaced, even if there is a good argument for Bone Plating being removed. I think it would help the game more to replace runes that are actually useless before replacing runes that are maybe too strong.
tldr; fix bad runes first rito plz