Interesting question.
Can't see any problem with stall onset.
However, such a technique
(a) with a concurrent engine failure sets the pilot up for not hitting V2 as expected. Generally, rotation rate is geared to suit the programmed VR-V2 split. OEI, rotate slow results in V2 exceeded, rotate fast results in V2 not achieved.
(b) depending on Type airframe geometry, may set the pilot up for a tail strike.
(c) sets the pilot up for an overrotation in the event of any distraction - now that might, in turn, set up a stall scenario
(d) sounds pretty silly to me.