Ranked is horrible

I just won a game of Gaurdian went 5 rounds i was mvp had a score of 13k k/d was 31/15 ranked score was positive 821 and i deranked from onyx 3 to gold 1. Not only do you guys often match me who is solo queing against 5 stacks almost every game but you put people who litterally have no gamerscore on any gears game other then 5. they have no idea whats going on.

https://www.gears5.com/live-update-oct3

5 wins as mvp in tdm has de ranked me from master to onyx 3 i get that they tweaked it but this is insane.