I understand the argument wholly. However, I think the only thing we agree on is agreeing to disagree, because it's the job of the better team to beat the hot goaltender. I'll secede and say flukes can happen, but I don't think any teams in the ECAC East are bad enough to merit "fluke" status regardless of how the game unfolds. The whole shots on goal thing is the most overrated stat in all of hockey, especially at the D3 level when not every kid has a lethal rip.
On a side note, I've often heard and agreed that goaltending is the biggest difference between D1 & D3 hockey, aside from the NHL-Draft 1st liners on the elite D1 teams. There's a lot of poor goaltending in D3, and a below-average team recruiting a goaltender that can stand on his head should be an accomplishment for that program, not deemed a fluke by the team that loses.
All-in-all, the top 4 seeds played at home last weekend and all won their games, so whether you call them flukes, upsets or just plain wins, it's nice to see it didn't happen this year.