Understand your thinking - just think the manifestation and impact of that would be quite different to what you/the FFA are hoping. The stark reality is that just like Australia, NZ is relatively regionally tribal in the sense that we support our "own" teams and identify with them. The regional roadshow is the complete antithesis to this. Sure, it would open the exposure up to the 4.5M audience but who would actually identify with the club and feel vested therein? Don't get me wrong - I'd support (although much less actively) a NZ team from ANY region over an Aussie team but would I feel passionate about it and think they were "my" team? No.
As others have said, which other Australian clubs have been told they need to take their team on the road to drum up support from further afield? CCM? Newy? Roar? Oh wait, none of them...