tl;dr - dota’s introduction of ranked roles increased queue times too much, not enough people queued as hard support. A little over a week ago Valve released a ‘credit system’ for priority matchmaking for those who fill.
I thought this was interesting because it’s closely related to what Overwatch is going through right now, and a credit based priority matchmaking system is something suggested a lot. It will be interesting to see if this blows up in their faces, or if it ends up working wonders for their game. Hopefully it proves successful and we see something similar added to Overwatch soon.
Some of the feedback so far is negative from supports, but that’s to be expected - they were the most in demand role so naturally they had unusually low times, and the negativity comes from growing too accustomed to it.
The original announcement, nov 2: https://steamcommunity.com/gid/103582791433224455/announcements/detail/1619534614701667085
To address role imbalance more generally, today’s update introduces Fast Queue for Ranked matchmaking. Players in the Fast Queue are given priority by the matchmaker, and will find matches much more quickly. In order to earn games for Fast Queue, you must elect to play with all roles selected. Playing with all roles selected will also automatically place you in Fast Queue for free.
When playing solo with all roles selected, you will earn four more games for future use in the Fast Queue. When grouped as a party, players can also earn Fast Queue games if the party fulfills all roles between its players. Two-player parties earn 2 games each, three-player parties earn 1 game each. You can earn and store up to 60 Fast Queue games.
…Our data clearly showed that players choosing roles without any additional constraints simply doesn’t result in enough role diversity for the matchmaking population to be healthy, negatively affecting both queue times and match quality. The motivation of the Fast Queue is to solve the “roll for mid” problem in a structured way that prevents in-game conflicts, while also providing enough role diversity to enable reasonable queue times.
Going forward, our immediate focus will be validating that Fast Queue is doing enough to improve health of the matchmaking pool, and tweaking as necessary.