No you get a throw that is less powerful. Try it then ask the uke. We have to lose power to become powerful. And the power we have to use is breath power not muscle power.
Well, yes and no. It depends on the method. I used to get criticized for "finishing" my throws too hard - smashing uke to the mat. All I think I was doing was timing my release of the throw to the transfer of weight to the appropriate foot. Acceleration of body mass through the hand, rather than trying to fling someone around by hand.
When I transfer the weight first and then finish the throw, uke is not challenged as much to land well. (comes from the judo days, throw the guy a foot below the tatami, and then squeeze him a little deeper)