But we're back again at, putting it in the constitution lifts the negotiating position as a, 'this will happen' we just have to work out how, from 'this might happen, convince us that we should'. The bargaining positions fundamentally change.
Give it a few years, another of these commissions will be implemented, or expanded etc. And the cycle will continue. Perhaps it'll even resemble the Voice proposals, but they'll never have the constitutional backing. And they're weaker for it.
The money spent on the referendum was worth the risk of failure. And the residual benefits ameliorate the cost of failure to a larger degree than people give credit.