If you have support at both ends.....how can support in the middle be overkill?
JimmyT has the fork brace and the Helibars up top giving him support at all three points.
Basic "Statics" tells me that keeping two tubes in alignment with each other requires support at the ends and in the middle.
Add some dynamic flex and the requirement is fairly obvious.
But, as Opas wrote, to each his own. Ride safe!