Indeed. The players in the promos on my team were worse than usual too. I noticed in pretty much all of the games (after I won 3 in a row) each of the enemy lanes was competent and could hold up. I had to deal with our mid Malzahar going 1 kill to 12 deaths in laning phase vs. a Teemo and he also ping spamming me to fall back when I have only 2 deaths. Then he muted the team because he thought "we werent on his level", no one even made fun of him like what would usually happen with this community. We had a Sona support who built full-damage Lich Bane, Morello's and dived/suicided vs the enemy team to "prove a point to us" about grouping up.
Then last game there was a Kennen SUPPORT who accused me of feeding top lane and called me a "potato". He came to top lane at level 6, I was 1 kill 2 deaths and the enemy top laner was 2 kills 1 death, both level 10. I'll admit I died twice to ganks mostly and good turret diving but this dude was 3 kills 8 deaths end game as a support and his adc he was supposed to be supporting...was 1 kill 12 deaths.
I'd probably legit quit if I went 9 wins 1 loss in promos and still got Bronze with how bad it is stacked against us. Even if it is against unranked players and Bronze 5 you still gotta deal with them on your team too so winning 90% of the time indicates you deserve mid-silver at last.