I actually find ranked matchmaking pretty fair, however the only issue:

Is that carrying 0/5 midlanes 0/2 and 0/3 botlanes, playing with support/adc that is 0/3 isn't really easy to carry.

Like some of the people I meet can have 20k 40k even 100k Mastery points on their champion and still manage to give a lot of kills to the enemy, like I'm talking 5 ~10 minutes that is like unimagineable if you think about they must have played against most of champions with such high mastery score expecialy popular champs should be ease for them since they're... popular.

So ranked looks fine TO ME (btw) the only issue really is this, and I mean I get it I had feeding games myself (I think I still won that game not sure, yeah 70% sure I won that game) and the reason was that I got hard countered plus you can't really do anything as a regular yi against vi.... that is fed.....

Like I'm talking my hp is 1200 and her damage combo when presses every ability is like 1000 so how do I survive that? I can Q she can just wait I can W and she has 2 ways to stop my W.......

Besides that though I don't really find normal someone feeding on their main even if they are being countered like that's one of the main things you need to think about when maining is counters and playing against them etc.

Hopefully the ranked changes (if they are even coming, or will be noticable) are not going to be too drastic.