If the head coach at St. Anselms was 119-76-17, no one would bat an eye. Atlantic Hockey is essentially a Division 3 conference. It's a far cry from coaching against BU, BC, Providence every weekend. Look at Quinnipiac. They have the fortune of not playing in Hockey East where they would get banged around every weekend. They were fresh in April because of their pillow fights from November through March. If they were in Hockey East, they would be a .500 or below team. Look at their record against Hockey East schools over the last couple of years. And the ECAC is head and shoulders above Atlantic Hockey.
OK, so let me approach it this way ... I don't think anyone on here disputes that overall, the best NCAA players are competing in D-1, and there are at least two (if not three, if I'm reading your take correctly?) general league categories across D-1. I suspect you and I disagree on the size of the gap between Hockey East and the ECAC, as I'm not in agreement with your take on Quinnipiac, which won a D-1 title just over a year ago whereas PC (almost 10 years), BC (over 12 years) and BU (over 15 years) haven't exactly been nationally dominant recently. And two of those three school's legendary leaders of their last title winning teams have been retired since.
So maybe this is down to my UNH perspective ... but do you really think just because they get many of the top players every season, that HEA also has the best D-1 coaches?? I know I don't. My take is the best coaches make their players (and teams) better, regardless of the level they are situated in. The only coach currently in HEA that I'd consider top echelon/elite is Ben Barr at UMaine, and only because he has a long line of teams/players/programs he's made better, virtually at every stop he's made. Pandolfo and Brown are coaching where they are largely due to their schools putting value on having an alum in charge. You can say the same about Lowell (Bazin) and UNH (Souza). I don't necessarily think all of those four guys are better coaches than counterparts/colleagues coaching in AHA, or even at some elite D-3 programs. Souza for sure, I'd think is in way over his head. Luce at UConn has also failed to prove himself to be the guy behind York's dynasty at BC earlier this century, but he sure is getting paid like it. Carvel at UMass has a ring ... but does he have that ring without the efforts of Barr?? I suspect no, but we'll never know that for sure.
When you come into a D-3, D-2 or low level D-1 program like Lang, and take it from the well-established doormat of the league to consistently at or near the top of that same league in a relatively short span, that is attention-grabbing stuff. I don't know the AIC situation as well as Snives does, but following what I take to be your logic ... let's say someone in Storrs wakes up and decides it's time to move on from Luce at long last. You are the AD, and you're putting together a list of potential hires. Are you saying that you would not consider guys like Lang (low D-1) or Joe Dumais (mid-D1 at the Q) as underqualified, BUT would put MS7 (Souza) on your list because he just happens to coach at elite D-1 (HEA) level?
FWIW I think you too easily credit the abilities of HEA HC's, where at least half of those guys could probably be easily replaced by other coaches from lower levels of D-1 (if not juniors or elsewhere) who have shown an ability to establish consistently winning programs. JMHO.