The Tigers went into the round 14 clash at the foot of the premiership ladder and looked set to stay there when the eighth-placed Swans opened up a 33-point gap late in the third quarter.
But Richmond conjured a stunning final-term fightback to put a serious dent in the Swans' finals campaign.
Not that Roos was happy to field questions on his September aspirations on the back of the disappointing performance.
"At the moment we're a bottom team so I don't think you can worry about the eight," he said.
"It shows where we're at. There's no use sugar coating it. We lose to the team that's on the bottom that's where you're at that particular point in time. The season is a rolling season and things change, but at the moment we've lost to the bottom team and that's what you are as a footy club. That's what we are.
"You are what you are. We've got North next week so that's our only focus and it has to be because we struggled today in the latter half of the game when it was there to be won and we couldn't win it.
"So there's no point in talking about the eight and those sorts of things."
The Swans allowed Richmond to score the last three goals of the third quarter which Roos said was pivotal to the outcome of the match.
"We turned a couple over late in the third quarter to let them back in … they've been going really well and we just let them in, they got confidence and then momentum which is a huge thing in footy," he said.
"It's really hard to turn around. We gave them momentum with some easy goals and, credit to them, they took it and ran with it and ended up winning."
The loss makes next Sunday's home clash with North Melbourne a must-win for the faltering Swans.
The two sides are equal on points with the Swans holding the Roos out of the eight by percentage only.
"It's obviously a big week for the players to assess themselves as a group and work out where they’re at and what they want to achieve together," he said.
"The coaching group as well. At seven and seven it's a huge game."
