Don't jump to conclusions - there's no way that will happen. We're without (Maurice) Blair, O'Neill and most importantly Cronk. Last time we were without one of the 'Big 3' in a big game the scoreline was 40-0. The Dragons have such a strong rivalry with us - both sides always lift. If the Dragons lift more, it'll be a good contest.
Bennett teams always seem to suffer the 'Bennett Slide'. I guess this is how Brisbane supports often felt in years past: benchmark for 2/3 of the season, heartbreak until next March. But this could be like Bennett's team in 2006 - they lost 6 of the last 8 before playing the Storm in Round 22. I remember the media was saying Brisbane was in crisis, and they had a closed training session. Brisbane then played Melbourne at Suncorp and played a very good game - arguably the better team even though they lost. This kick-started their season, and they went on to score 180-58, and then played Melbourne again...and we all know what happened then.
Anyway, my point is - it isn't over yet for the Dragons. If they turn the corner before playing Melbourne, they're back in it (even if they lose, but play well). I'm not writing them off yet - they have too much talent. But if they capitulate, it's probably a little too late.