I've seen many posts saying that there's probably a bug with GW. Lately, the matchmaking has been getting more and more king sofa (rev) bad, I now I'm thinking there's a lot of truth to those posts.
Node 3 is almost always easy. It's supposed to be a team below your arena GP, right? Today there's an unbeatable brick wall team on it. This doesn't make any sense. It's like matchmaking goes nuts and picks a team based on your cumulative GP and not just the arena team.
Why are we, the players, being ignored by the developers? There's a problem with GW, it needs to be acknowledged and addressed.