But then you don't get a supersonic reactive capability that can operate in a significantly contested environment if you use Reaper.
Agree
But you can sacrifice 10 reapers while waiting for supersonic capability to get there.
I can envisage the day soon when Reaper can deploy 20-30 mini Reapers all focused on same targets when required as a defense. Thus making otherside having to focus on defense rather than offense.