Dynasty gets thrown around too much in sports nowadays, and it’s not fair to compare today’s NHL, NBA and NFL teams to those of the past since all three operate with caps (NBA is the only soft one) and have so much roster turnover that makes it harder to keep a winning core together. Three in six is not a dynasty per se but a sign of modern dominance, much like the Spurs spread out NBA titles.
I agree. I don’t know what, if any, definition off a sports dynasty exists, but for me multiple championships in a row are pretty much a necessity. 3 in 6 is great, but that doesn’t compare to Detroit winning 3/4 from 1952-55 let alone what Montreal and Toronto have accomplished or the Oilers winning 5/7 or the Islanders winning 4 in a row.
Granted, as you said, it is very difficult to compare eras when the rules were different, the process was different, the equipment and training was different and there were fewer teams.
Chicago is not a dynasty. Not yet anyway. Though they are the best team in the NHL (and therefore in the World) right now.