Can we receive an update on old mechanics?

So league has been around for 9 years, nearly 10, Which is a real milestone and achievement but also, remnants of the original game still exist in an awkward state, Crit has been and continues to be very op due to its very....simple nature....and the fact AP cant equal up to it (except maybe veigar) Grievous wounds....it doesn't need to be in the game anymore, back in the day when champ damage was overall lower and sion could give his whole team 50% lifesteal for like 15 seconds (or whatever it was) and spell vamp was on multiple items, yes it needed to exist, but now a days, most champs with healing will die pretty easy, even without this mechanic, the only champs I believe cause issues when there are no grievous wounds is soraka and marksman, but marksman is an easy fix, soraka could see a rework if she became oppressive Targeted CC, while this works fine for ultimate abilites/conditional abilites or even melee range abilites, some champs still abuse this mechanic, making their play style unhealthy to the game (Fiddlesticks/Twisted Fate/Annie are the main abusers of this) while there are easy fixes or possibly reworks that could be done for these champs...riot just doesn't like touching frustrating champs I guess? Armor/Magic resistance/Health....these stats have been in games since the dawn of mmos, but currently....league kinda just....sometimes they feel op, other times, i can be a 500 armor malphite with 5k health and still feel like a wet paper towel against their xayah....personally i feel we need a rework on HOW these stats are gained/work...as it currently is, an ADC can just go pick up a DD, GA and ninja tabi and output tons of dmg with their 3 crit items, while now basically being immune to your fighter/diver/assassin Overall, league has come a long way, and I feel core game mechanics need an update