Dynamic Queue Problems
https://www.youtube.com/watch?v=CLmdvUl7ttM
Basically Phylol hit the nail.
At 0:48 "Your Main and Secondary Roles are dependant on the actual roles themselves." You will get put into a least popular role by default even if it is your Secondary Role. This has been an issue whenever I pick Mid and Support. I almost always get Support because it's the least popular. Also when Filling, Support seems to be the default. 1:10 Strengthens this point.
At 1:50 Also talks about how "people who get Support 90% of the time are usually so sick of getting Support that they will change their Role, which further makes the lack of Supports an issue". It's already bad enough there's not enough supports, but now a lot of Secondary Supports are changing Role because they almost always get Support by default due to the lack of the role. Phylol then says that 'eventually this will only leave the Main Support Roles open and the Fill Role will be even more likely to be a Support Role almost guranteed".
At 3:00 Phylol now makes a huge point about how Solo players in Ranked are now suffering because of this premade system. At 3:17 "It really comes down to who has the BETTER premade, so what is the point of me playing really?" The example he gave at 3:30 strengthens this point. 'It's not that my top and jungler were bad or anything, it's just that the other 4-man premade was better and made better plays'. 4:00 also strengthens this point. 'Either I'm going to have this monster game where I stomp everyone... or if I play normally which is EXPECTED of me, then I'm either going to get carried by my 4-man premade or lose to the enemy 4-man premade.
At 4:22 he talks about how Solo Queue has become a Competitive LCS Teams equivalent now. At 4:50 Phylol says, "The thing is, ranks are NO LONGER a pure reflection of how good I am at this game. Sure it 'shows' if you played Solo but it doesn't show if the person played Solo or played 4 or 5-man Premade up to that Rank. It's like if you look at a profile and he's Diamond 1 and you think, "Wow this guy's a god!" and naturally he could've just 5-man premaded his way up to Diamond 1 and get carried most of the way. You have NO idea how good that guy actually really is."
Conclusion: While Dynamic Queue may have its positive sides and be a fresh new mode, it still has many flaws and downsides and it is impacting mostly the FIll, non-Support Mains who go Support for Secondary, and most importantly impacts the Solo players being paired with 3-man, 4-man, and 5-man premades. Phylol and many players including myself agree that it really feels like queuing up for a coin-toss at getting the better premade and feeling not as impactful when playing at the expected MMR.