Absolute bs, Sancho is a much more rounded player. Rashford, even at his best, was effective in a kind of 2/10 kind of way, in that he would try things ten times and two times they would come off. Those occasions, they did come off he did pick up some assists and goals and Ole relied on this, alongside Bruno, to regularly save his bacon. Over a period of time though, the dumb strategy this was becomes more and more apparent. It only takes a little dip in form for fans to realise that when not contributing goals and assists he could also be an absolute liability, offensively and defensively, and this leads to a vicious cycle that's hard to escape from when relying on a 2/10 approach (that increasing lack of confidence and pressure is now turning into a 1/10 or less approach.)
Compared to Sancho, the decision making gap is like a chasm at the moment. Sancho retains possession, creates opportunities and keeps the intensity of the game going in all phases. Additionally he presses and defends more than Rashford. Within a coordinated system, this is far, far more preferable for bloody obvious reasons. Sick of this, 'oh Rashford just needs x and x and x in order to become the bestest player ever' bs, it's gone on years now and just makes me wonder why some are so keen to cling on to this than to acknowledge the obvious truth they're being slapped around with during every game.