Sure, I'm just an average player I think... Gold III (about to go Gold II) but I don't play too much, and not many of my matches are in ranked so I progress slowly.
I'm playing on PC, I don't know if this SBMM issue is different depending on the platform. Yesterday I won a match and finished second on my own (just two of us in the selection screen, my mate got downed later but couldn't recover him).
So, for me normal matches didn't look so bad, but I'll keep an eye on this. I haven't got the impression of being "owned" by elite players everywhere - but that's my experience until now.