People queue in group out of frustration

I've won 2 games in a row (stomps), while playing against 3x premades (judging by their Clubs tags). In my team in those 2 games, no one had the same club tags, but when i asked politely on chat, no one said they were premades, and i didn't even saw something to indicate they were premades, judging by how the game went. Ok, this is not a rant about "we are all soloQ and they are 3 premades".

It's just the fact that in those 2 games, those 3 premades were not even on any voice comms !!! In one game, i ganked top lane (Ekko tank) 3 times in 5 minutes. He then started crying on "all" chat. I told him something like "you are 3-premades against all soloQ, and you still cry about being ganked?". His response was : "Yeah, 3 premades and 0 teamwork."

Actually, what my point is right now, is the fact that people are starting to queue in group out of frustration. Frustration of being stomped as a Solo player, when they actually meet a good premade.