I always assumed pattern planes had more than enough power so that gradual loss would not be big deal.
More than enough power never exists!!!!!! Sure there are some people that shouldn't be in control of such power, but to the discliplined pattern flyer, the throttle is a primary control, ideally full throttle should never be used in a normal sequence. Now I doubt that is ever going to occur, but you get my point. Get out there and practice, soon you will realise the importance of excess power on demand!!!
Cam