However, Mr Rogers described the crowds as "okay" and "solid . . . without being spectacular".
He said there were a number of other events on over the weekend, including Whakatane's annual national club touch tournament.
As it was the first year hosting the tournament, organisers weren't sure what to expect, he said. They would now work to spread the word and get a bigger crowd next year, Mr Rogers said. A full debrief will be held in the coming days to look at what could be improved for next year, he said.
"But overall we're pretty happy with how it's gone."
Rotorua's Emily Rua-Bennett was on the terraces both days with her 8-year-old son.
It was the Bay of Plenty supporter's first experience of watching sevens live and it was "awesome", she said.
"I'd always wanted to go to Wellington [International Sevens] but never made it there.
"A friend told me the national sevens was heading to Rotorua so I thought that's an opportunity to go to that," she said.
"The games were brilliant ... I was impressed with the fitness level and talent of the players."
The event had been promoted as family friendly and the children's entertainment was a highlight for Ms Rua-Bennett.
"I didn't see my son all day, he was on the slide with all the kids," she laughed. "It meant parents could watch the games."
She said there was a fantastic atmosphere at the stadium, with spectators getting in behind the underdogs. She also enjoyed the music, which kept things lively during breaks in play.
Ms Rua-Bennett said she was impressed with the organisation of the event, tickets were affordable and "definitely" will be there again next year.
For results and coverage from the tournament see today's sport pages.
