My take is there are some schools that seem like junior national programs, and then there is everyone else trying to get to that level. The teams trying to get to that level need to find their edge where they can within the rules of course.
I wouldn’t take just any player for a 5th year, for the reasons Zed describes. But for an unranked team, if there’s a 5th year that might help you win a few games and get you ranked, that’s a data point “top ten team last year” that might help you pick up some future recruits. Then maybe those recruits get you into an NCAA game, maybe your coaching staff gets to work for USA Hockey/ Hockey Canada which doesn’t hurt recruiting, maybe you eventually win an NCAA game etc. Takes years of course. Maybe we get real parity and the same 4 teams don’t win national championships repeatedly. When I played we had a junior transfer in who I believe accelerated the upward arc of the program. Probably cost me some ice time though, lol. But Im proud to have hopefully contributed to making the program something she’d want to be a part of. I’m sure other schools have similar stories.
Obviously coaches need to balance what is best for their program, need to keep credibility in the recruiting circles, but good to give off a vibe that you are actually trying to win and constantly better your team as well and not just signing players based on high school performance and calling it good and collecting a pay check, also.
I’m not connected to the recruiting scene in anyway, I assume it’s more complex than I understand, but my initial thought is coaches should stand by the $ and college admissions they commit to, but ice time and dressing for games isn’t guaranteed. Chasing off good humans who follow team rules and work hard on the ice that you once committed to doesn’t seem right either. Also think as a coach it might be nice to coach a player four years rather than constant churn.
Tl:dr 5th years / transfers have their place, and a small thing like a couple big wins can have a lasting impact on a program. Just my thoughts and I’m sure there are angles I haven’t considered and always interested in others thoughts too.