The problem is that DyanmicQ undermines individual skill in favor of someone's friends or smurf friends basically handing them LP. I know of a silver support Leona main who ROUTINELY goes 0/6/2 before 20 minutes without any enemy ganks. BUT, since he plays with friends who can deadlift his ass along he can still rise.
DynamicQ is allowing the sewage to seep up when it shouldn't. For a support main, it's great. The lowest impact player with the least carry potential in most elo's gets some help rising out, but for any other laner or a jungler it's a detriment. You end up in a team with 3 premades, one feeds like he's the embodiment of salvation army and the rest of the team proceeds to defend him as they drag him along like he isn't the issue.
Riot COULD say they are all about team play and working together, but then they take HOW LONG AGAIN to ban someone like Tyler1 who made thousands off his stream and HOW MANY ACCOUNTS AGAIN getting banned? Doesn't sound like any kind of commitment to promoting a positive teamplay-oriented environment to me.
Teambuilder was a better set up. Even Ranked Teambuilder would have been better. DynamicQ doesn't let you EFFECTIVELY pick who's going to be on your team. If you see someone who q's up as a vel koz adc for your ranked, you can just toss them back and get a new adc. Less trolling possible before ban phase starts AND you can effectively build a comp you want rather than randomly being tossed into a q with people who will just lock in adc galio last pick to troll the room.
DynamicQ is flashy, but it just doesn't support a healthy gaming environment as far as ranked play is concerned. It doesn't create a better sense fo team composition, it doesn't do any good at preventing trolling, the only thing it did was help make getting your intended role easier, which teambuilder already did a fine job of in the first place.
DynamicQ feels unfinished and the whole ranked experience suffers for it. Even a ranked teambuilder feature with no premades would have been a less jarring way of addressing role selection than this. Premade teams just demeans the competitive ranking of League. I enjoy playing with my friends as much as the next person, but that's why we have normals OR DID WE FORGET THAT STILL EXISTS TO HAVE FUN PLAYING WITH FRIENDS?