DT::Duration overloads

[Matt Sisk]

I understand that division can be expressed as multiplication, but is 
there any particular reason why division (/) is not overloaded but 
multiplication is for durations? Then you could say:

 $midpoint = ($dt2 - $dt1)/2;
rather than
 $midpoint = ($dt2 - $dt1) * 0.5;
Small thing. Just curious.
Thanks,
Matt