How to fix lower elo experience

So I know earlier in the year Riot had a discussion with some people about Dynamic Queue (the one that had gbay99) and they kinda explained all the issues they had with it but they mainly talked about was higher elos, even though over half of the ranked player base is in Bronze and Silver. So I would like to discuss ideas on how to improve the ranked experience for low elos as well. Keep in mind I am currently Gold IV and have been Gold for 3 seasons in a row now. I'm a filthy casual that plays ranked for the rewards.

Anyways, first thing I'd like to talk about is the rank range for people to be able to queue together. You only have to be a rank apart regardless of division. I started realizing how much of a problem this was once I started paying attention to the ranks of those I play with. I had a game recently where I was solo mid and my bot lane who was both high silver was fighting a Silver IV Janna and Gold I Jhin. Needless to say, that ADC got ridiculously fed. The skill gap between low silver and high gold is way too high for them to be in a game together and the match be balanced. Jhin was 15/0 by 16 mins there wasn't really much I could do. If it was a Silver IV and a Gold IV, or a Silver I and a Gold I, might be a bit easier to find a match for.

Another thing, earlier in the year I was Silver 1 and I had a game where I played ADC and really enjoyed my support so I added him to find that he was Platinum V. So even though we were just in a match together, we couldn't queue together. Which is funny, because while we had a 6 division difference we were still closer than my recent enemy bot lane that had a difference of 8 divisions. They really need to work on balancing low end matchmaking. In that discussion I mentioned earlier they said it would be easy to find a match for 5 bronze players but apparently once you hit high Silver it all goes to shit. Which is just sad.

I understand these are anecdotal and does not happen all of my games but it happens enough to where I have to bring it up.

My last point to discuss is something that would actually affect everyone but more so to lower ranks. It's also a bit of a fantasy I guess as I understand it's probably much nicer in theory than in practice. But it would be to have some sort of mechanic added to the queue that would make players who leave games be more likely to be queued with other people who leave games. Likewise, if you don't leave games you would be more likely to be queued with players who don't leave games.

So please, offer your rebuttles.