What is causing players to be stuck at below average ratings?

[Krispyflayz-sargeras]

@Hirav-khazgoroth

@Zaden-tanaris

There’s a blue post

You mean this?

PvP Rating Adjustments

Where they specifically said:

@Kaivax

For clarity, there is no cap to MMR, but the highest rating is a result of the combination of population trends and lack of inflation.

I DONT GET so is blizzard not responsible for low pvp ratings?