I get it pretty regularly in my trial roulette... the queue may take quite a bit of time, especially as dps, as long as 10-20 minutes, but they do happen consistently. It is a very very very VERY easy roulette for those that get it, so it is definitely not undesired. Make sure you have all languages available, and keep queueing. I promise you those clears do absolutely happen, even if you may have to wait forever to get into it.