Yeah, that's a good point. I never really liked losing a passing lane and a shooting lane by having a player stand in front unless he was really, really good at it. Personally, I've crafted myself into something of a special teams coach these days - as I feel like there's more that can be done schematically to impact the game there. And I'm not sure I've ever had a guy just standing in front...my low guy (I call him a 'rover' because no one knows what the origin of that term is these days haha) moves around from the corner, to behind, to the front, etc. depending on where the puck is...he's actually the quarterback as my power plays traditionally work from down low, not up high...having that freedom to move adds at least two passing lanes that I would not have ordinarily have had if I had a guy just standing in front.
Plus, modern penalty killing doesn't even address that guy so much any more. A majority of clubs, even as you work your way down the ladder, front pucks now. They don't engage in a Hatcher/Holmstrom type battle like we would see in the 90's...so now you're really short a passing lane in a situation where you have an extra man. Not much of an advantage I say...
Last point selfishly about me...ya know, it's true sometimes what they say: you coach almost the opposite of how you played...you almost live vicariously through yourself so to speak...I don't put a guy in front on the power play, yet I model my entire game (as a slower, RHS player with good hockey sense) after Patric Hornqvist...he's basically my spirit animal haha. Dan Bylsma, a fork and spoon operator in the NHL, coaches a complicated offensive style of play...Randy Carlyle, a defenseless defenseman, is a hardcore line matcher and defensive coach...Patrick Roy, a goalie who even played the puck very poorly, is a heavy-attack minded coach...etc. etc. Just funny how things work sometimes...