I don't have a problem using reduced thrust under the right conditions, Light loads, cool temps, long clean runways and no obsticals (above and beyound the minimum requirements).
But I do use max power more often than not. We use average weights for pax and carry on bags, operate out of tight airports (LGA for one), operate with intermixed engines, use distant and close in noise abatment departurer procedures, all this with airplanes that are 30 years old (DC-9) ect,ect. Reduced thrust has always been SCD.
There are economic consideration and benifits to reduced thrust that have been mentioned above but I beleave your have a 50/50 chance of loosing an engine on take-off, maybe you will, maybe you won't. I want to be off the runway and climb climb to a safe altitude ASAP.
As far as a reducing Vmc with reduced power that is true but you will be no where near Vmc if you fly the corrects speeds.
I comes down to judgement. I ask myself; 1. is reduced thrust authorized and 2. is it prudent for this takeoff.