Issues with normals: Mid-Gold/Low-Platinums entering Mid-Silver/High-Bronze games in Normal Draft

So I'm ranked Siliver 3 and I am getting stomped by people that are entire leagues ahead of me. For some reason in my normal games of mostly bronze-siliver, major outlier(s) will sometimes appear.

It will usually be one platinum player or two or less gold ranked players. In one incredibly one-sided game the other team had two mid-golds plus a low-platinum on their team. None of them were apparently group queuing together when I checked their histories.

Is there an error with the match making system? Or is this on purpose because I do notice patterns.

In another game our team of mostly silvers and one bronze went against a team of mostly bronze but with a platinum player. That platinum player went 13/6/25 in his role and crushed ours who went 3/19/4.

If this is on purpose by the system or an error in it,** it needs to be changed.**

This is not fun.

Anyone else been noticing this?