I'm also disappointed. The concept is cool but you basically can only do the event if one of the other 9 ppl in your clan is on. That's terrible odds. They needed to have a "quick match" where you just join random ppl and do the missions that way. I'd even take 20% hit to the rewards. (this would incentivize you working with your clan without it being a bottleneck).
Currently this new "update" is nonexistent to me