My claim was that Harvard recruits better talent than the rest of the league, and this has definitely been the case the past 10-15 years. Remember, second overall pick Matty Beniers was committed and would have attended Harvard if not for COVID wiping out the Ivies' seasons. There is no chance any other ECAC school would ever be competitive for a player of that caliber. Matt Coronato is another example. A first round pick has not attended any other ECAC school for many years. I believe the most recent example was Riley Nash at Cornell in 2008-10, and that was only because his brother had already committed.
I believe that every season for the past 15 years, Harvard has had the most draft picks, the most high-round draft picks, the most recruits ranked by NHL Central Scouting, and the most recruits from the US National Team. In fact, in many of these years the gap between Harvard and the next-best ECAC school hasn't even been close. A year or two ago, Harvard had 15 draft picks on its team, which was the most in all of college hockey--more than Minnesota, Michigan, BU, BC.
Harvard also has far more players in the NHL than the other ECAC schools. It's been that way for many years, and it isn't close. Harvard has NHL stars like Fox, top line players like Beniers, Coronato, Lafferiere, Donato. It has many more everyday NHL players that I didn't name. The next closest ECAC programs have like 3 or 4 largely marginal players.
As to why many of their recent draft picks haven't panned out, I don't know. But the gap in talent is obvious. And if it hadn't been for COVID, Harvard may have fielded the single most talented team in the history of the ECAC in 2021. Remember, because of COVID they lost a ton of talent to the NHL (eg. Drury) or to other schools (eg. Beniers). They still ended up with a stacked team full of future NHLers in 2022, even despite these departures.
As to the part about Quinnipiac, I wouldn't say they "are doing things the absolute right way." Quinnipiac bends the rules. They're active at poaching players from other schools. They won the national title in 2023 because they convinced 7 players to stay a fifth year. They do these things even when they have recruits in the pipeline expecting to play. By instead bringing in transfers or keeping a senior an extra year, Quinnipiac forces their lesser recruits to either decommit or matriculate and then transfer out after getting no playing time. Also, the other coaches in the ECAC think Rand is a huge jerk.
Is Quinnipiac breaking any rules? No. But they push every rule to its extreme. Are they the only team doing this? No. But the rest of the ECAC does not operate in this fashion.
Still, it would be bad for the league if Quinnipiac left.