the thing about low level matchmaking matching smurfs to smurfs is a bald-faced lie.
in my game today i get a ryze who goes phase rush and buys mana crystal first. i can tell he's a noob because he walks down lane where 3 people have been for the last ten minutes, it's no secret there's 3, that's why he came down bot. and he just walks up to three of them and tries to smoke ezreal before all 3 of them can smoke him. he doesn't even get through 40% of Ez's health before he dies. my adc is trist, she doesn't ult even a single time, you know that bomb thing? that never actually happens. she doesn't even use her full kit.
meanwhile the synergy and placement skills of the enemy team were very clearly smurfs. there's a difference between noobs who click with certain champs, and constantly knowing where to move.