Ok...
If you dug the post out, and the bush soon split and fell over... not a problem. would continue growing if ignored, would grow back rapidly if cut to the ground.
I usually prefer to let them grow as nature dictates, but I've had people insist on treating them like crape myrtle.
Trying to prune any shrub into a tree form... is not going to be the best approach... to prevent the shrub from getting too heavy for the trunk to hold up is going to require staking forever... Or a lot of top pruning.
All the new growth on top tends to be too much to support.
So... yes... fairly simple fix, and not an end of the world issue.
