Going to disagree here.

I used to play a lot of killer, I was usually rank 2 or rank 1 by the end of the month when I used to play & then I took a year+ long break and came back recently to MMR being implemented. At first my matches were extremely easy. Like... survivors not seeing me while I walk over and pick them up off of generators easy.

After about 8 - 10 hours of playing across a few days, almost every match I get placed in are absolute sweatfests. I'm only like.. 'gold grade whatever' or something, but my matches are exactly how my red rank matches used to be--organized survivors that know the location of every pallet/loop & know every safe zone and how to coordinate to trade hooks while always having gens popping.

The game seems to have very quickly put me at a specific skill level. I believe there's an MMR, though whether or not it's made my experience better is another entirely different thing, lol. It used to be that I didn't have to worry about sweaty SWFs until red ranks.