flags 'grow' out of natural progression, they don't get chosen by competitions.
We are doomed then, because any new flag we get will inevitably come as the result of a competition (submissions, shortlist, final list , referendum). It will never evolve, it will just appear.
NZ is to be admired for how it has achieved this.
And yet strangely enough, they have a flag remarkably similar to ours, and don't seem in a hurry to change it. They too seem to be happy to live with what they've got because they don't like the alternatives. For all their Maori inclusiveness, they don't seem keen to have it reflected in their flag.