The new ranked system is a shameless moneygrab.., and other reasons Riot doesnt deserve you anymore.
Any time a company starts using dodgy language for a change that will benifit them far more than the majority of their customers, you know things have gone sour.
"Dynamic Queue" AKA If you want to enjoy the game and climb in ranked, bug your friends to play LoL and then Riot gets more $$$
Who really thinks anyone that only plays solo will ever reach the high ranks with this system? Even IF the system matches multi queues with other multi queues, you are STILL in the same ladder as the 5 man toxic pub-stomper team. Eventually you're going to run into players that have ranked up due to multi queue. Then get ready to have teams of nerds on either side of the map gang up on you.
Obviously you're going to get ganged up on and blamed more than before. Think it's fun to have your whole team blaming you for a loss because you "didnt gank enough"? Try it with 4 douchebags co-ordinating on mics to harass you. Not that you would even need to do something wrong to get harassed. People will naturally gang up on an outsider for any reason at all. Maybe you dont have a mic, or you didnt want to join them on teamspeak, then you're the reason they lost. Also enjoy those mob troll reports. :)
On a related note; It's been clear for a while now that Riot bases most of their design and balance choices off of "proffessional play". Competitive gaming seems to be a big cash cow for them, and they have all but stopped thinking about the solo player experience even when it comes to designing champions and balancing the game.
For 5 years Riot avoided making champions that could forcably interact with their own teammates because of obvious trolling potential, but now we get dumped on with a slew of new champs that can do just that. Co-ordinated play with fully premade teams(hint hint bring your friends) will benifit from these champs, and clutch flashy plays will be abound. If you're a solo player however, these champs more likely offer new ways for people to troll and bully you. They also offer new ways for bad players to hurt their own team. Maybe Bard really thought it was a good idea to ult the enemy team just as his fiddlsticks ulted in.
The take home lesson is, Riot Does Not Care About 90% Of Their Player Base.
If you're a silver, gold, plat, if you dont even play ranked, if you only play solo, Riot isnt interested in making a game for you. They dont need to, in fact it is more profitable for them if the game punishes you for being a casual player, and not nagging your friends to play.
So dont bother giving feedback on design choices, your enjoyment of the product is not the goal of Riot's new design.