Cool Idea to consider for ARAM? (@RIOT)

Okay so there is a decent amount of games where one team has a completely dominate team comp compared to another's and leads to bad experiences. I was thinking what if you set up all champs into categories and potentially subcategories and make a system that randomizes what types of champions the teams players get. So for example, if they were based on champ type [AP (poke, hyper carry, assassin), AD (consistent dmg, hyper carry, assassin, fighter?), Tank (juggernaut, tank, fighter?) (What ever categories would make sense to make)] the system would randomize and pick from all the categories (5 total per game and potential repeats for 10 champs from one category hypothetically) and the system would give them out to both teams.

So the system picks 5 categories total, starting with the one that the first two players on each team gets, then the second two, and so on (again there could be repeats. So theoretically a full game of 10 ap poke mages). If a category runs out or there is only one left the system could just remove it and only pick from the rest that do have enough champs for 2 players in it. 
 
  I'm aware that there is some overlap in some of the categories but you could make the same champion possible for either. An example would be Leblanc is an AP hyper carry and an assassin so she could be put into both categories. Not sure if that made any sense but I thought about this for a while and I think a lot of people would like this system. It's still completely random, but you don't get practically dominated just from champ select. When i brought it up to my team in ARAM, because other team was really poke heavy and dominating, they said that they thought it could work and liked the idea.
 
   Edit: Also if a champion gets picked for one team remove it as a possibility so no other person in the game can also have that same champion. Also i realized a potential problem. Idk how rr's would work if one category was really small and there were only like 2 options (maybe cause there is already a lot of them dished out). So idk how feasible this is. Depends on how large the subcategories that get picked are. Switching can still work and comp would still be the same. just different player playing the champion.