User blog comment:Willbachbakal/(Item Concept) A New Kind of Crit/@comment-6016076-20150710101311

If I'm understanding this correctly, I had an idea that functioned in principle the same way:

http://community.na.leagueoflegends.com/en/c/live-gameplay/hbEj1jWi-can-we-finally-phase-crits-rngesus-out-of-the-game

It might also interest you to read Morello's response which elucidates the design team's stance (or rather, clarifies that they don't have a clear stance), but does talk about their thinking process.