Broncos assistant coach Joe Grima was disappointed to see his side's cup challenge ended so soon, but was still able to take positives from the game.
"It's not often in rugby league that you will score 24 points and get beat, but that's probably where the London Broncos are at the moment," he said.
"There was a period in the second half where the Catalans scored three back-to-back tries, which really hurt us.
"That probably shows where the Catalan Dragons are too. They've played particularly well in the last four weeks and that was probably typified by us scoring 24 points, yet still not winning the game.
"At half-time the team were incredibly confident they could get a result, given where they were situated and the opportunities that had been given to them, particularly in the last eight minutes of the first half."
Despite giving away 40 points to their opponents, the manner in which Catalan's tries were scored was a source of some comfort for Grima.
He said: "The majority of the Catalan tries were scored on our edges or through broken play. Any coach will tell you right the way from under-eights up that it's better to concede tries out there than in the middle.
"We did that tonight. Over the coming weeks we now have to get our edges as solid as our middles."