Bolton, 28, believes there were many factors contributing to the paltry crowd figure of 19,127, which was the lowest finals attendance since 1924.
But he said it didn't concern the Swans as they took on North Melbourne in the do-or-die final.
"It was a shocking couple of days up in Sydney. It had been pouring rain and it was like cyclone weather," he told Melbourne radio station SEN on Tuesday morning.
"It obviously wasn't publicised too well and the Kangaroos probably didn't draw as much of a crowd as say Collingwood would, so there were a number of factors.
"It didn't matter if there was one person in the stands; we just had to get a win and go from there.
Temperamental forward Barry Hall played his best game this season with three goals after being manned by Josh Gibson for most of the evening.
Bolton said it was pleasing to see Hall playing with his renowned intensity but keeping his aggressive nature within the rules.
"It's probably the best way he needs to be playing," he said.
"We wouldn't want to see him lose his aggression and physicality, and it was an ideal match up for him in the forward line.
"He used his size and strength and also his ability. He's got his confidence back and his confidence in his body as well, and he's going really well."
Bolton also said the Swans had recovered well from the difficult match played in the wet, and were looking forward to the finals atmosphere of the MCG on Friday evening when they meet the Western Bulldogs in the semi-final.
"Everyone has pulled up pretty well. It was obviously a hard and physical game, but that's what finals footy is about," he said.
"It was exciting to get back to the standard we like to base ourselves off.
"It's going to be great getting down there on Friday night to immerse ourselves in finals footy."
The Sydney Swans final against the Western Bulldogs will be broadcast live in Sydney on Channel 7, from 7:30 PM.
