Most organizations do not introduce players this way because it has a very, very low success rate. Management can say whatever they like, that does not mean it is correct.
It seems to me most organizations do start their rookie centers on lines that get less ice time (I don't look at lines as 1, 2, 3, 4), or alternatively start them on the wing. I agree the opinions of management can be correct or incorrect. I didn't read the quote from draft day as saying Hayton would start this season with the Coyotes this year, I read it as saying he's not your typical prospect who doesn't gain anything or could have his development stunted by playing in the NHL before he reaches the level of play he can ultimately reach. That seems to fit with the constant messages we are hearing from management, coaches, analysts, etc.
I think we all agree Hayton will not last past 9 games (I'd be shocked if he suits up for one game), but we will look at him as having a much better chance of making the team next year.
Good times.