We are here because of the neglect of grass roots and the irony is they cut a team without a plan they will damage grass roots even further.
I think the issues right now are more immediately related to the problems with the 18 team Super Rugby competition and it turning away fans.
I think a three conference 18 team comp would be preferential for at least a year to see if that improves things but a revision back to 15 teams is most likely a better option than persisting with the status quo.
With all countries seemingly set on keeping the Sunwolves there doesn't really seem like a feasible way for the competition to shrink to 15 teams without Australia dropping one. Perhaps the primary concern is that if Japan was dropped, the revenue would drop to a level where the ARU wouldn't be able to afford to support the next team to run into financial strife.