We have, on our teams, CC and interrupt to stop it. But like you said, the timing is an issue, we have a like 30% success rate.

But as a 3 man team with 12 ninjas, losing 1 is fine, we just face roll rest of it. So the point of having a team is not that we can't beat it alone, but that we'd rather not restart over and over. that and you get more reward as a team.

Like I said, it's not as hard as some people make it out to be. We have well over 70% success rate against them(there are some RNG in there... and one of our member insist on changing team every few try... which makes things much more complicated)