arm action

i know that ur supposed to have your elbow below your shoulder at all times… but what if when on foot strike ur elbow is inline with ur shoulder height and poking out behind u with your forearm flat [not inverted L] but facing 3rd if your a RHP

when u freeze frame a clip of almost every pitcher theyre elbow isbelow the shoulder and forearm is tilted upwards at about 45 degrees

is there a danger to having the forearm not tilted up and elbow at shoulder height?