I’m sorry for the frustration being caused Yaya, and the extended wait times.
9 minutes is a pretty extensive wait for most players, and by that point our system has very likely abandoned its attempt to get you into a ideal composition (and it should be communicating as much down at your estimation), over getting you into a match as fast as possible. That said at that point, the composition you faced would not actually be a bug.
That said, thank you for bringing your experience to our attention. We’d love for any feedback you have on the current system over at the General Forums.