People went nuts went URF winrates got ridiculous
So why do we tolerate similar ARAM winrates every day? Everyone knows this mode isn't random, but honestly. A group of like ~15 champs just completely annihilate this mode to the point where you might as well AFK if the enemy team gets two or more of those champs on a team. Map specific nerfs have been used in the past. Why not tone down Janna's stupid tornadoes? Or Sona's heals? Or Ziggs bombs?
If you continue to refuse to make the mode random, at least remove the illusion completely by not allowing more than one of these S-tier cancers on the same team.
nonstop nuking you from the safety of their team's backline.

Galio is the biggest abuser of mark/dash and has a ridiculous 66% win rate in ARAM averaged over all regions with a 64% win rate in NA this week. About a month or two ago i checked the ARAM win rates, galio was at 66% back then too.