If I recall, attendance shot up when we hired Martin as our HC, likely because we became a winning team. That happened around the traded deadline of our first year in the Corel center Palladium, and if memory serves, we only played our first game in that arena in January, as it opened mid season.
The truth is there was a lot of buzz around the Palladium; it was a very nice arena for it's time, and that, combined with renewed hope for a winning team thanks to Martin being hired, meant season ticket sales got a bump. To suggest the Kanata location was a driving factor for attendance increase is misleading imo, at best you could argue being in a substandard venue lacking the infrastructure required to house an NHL team put a downward force on attendance when they were at the civic center, but that won't be the case at Lebreton, as the venue will be purpose built to house an NHL team, and LRT will also be available. .