All all random gamemodes are busted

Obviously this post is about me complaining, but the system for choosing "random" champions is absurd, sure, it's 99% random, but the fact that it's possible to have 3 supports on a team is busted. I just played a game with a nami, sona, and rakan. Let me tell you, the enemy team was not happy, complaining about this and that, and I completely agree. The healing and shield potential was too much, not to mention the sona mains who build full AP. I would prefer if ARAM wasn't actually all random, maybe 1 random champ from each role? That would make alot more sense. ARAM is supposed to be quick and fun, it is, don't get me wrong, unless you're losing. 99% of the time when you lose you get steam rolled because there is too many champs in one class.