Last year Edmonton was the favorite to win and didn't. (Analytics, betting entities, etc)
This year everyone believed they would lose every serie so far and haven't.
We haven't had a dynasty in decades, (some people consider a 3 peat a dynasty, I don't, but whatever, that's not the point).
Both the cats and the oils weren't very good team a couple of years ago. the bolts bruins and hawks era seem to be over. To me, the system is working. You don't want exact parity, for storytelling, you want era of team emerging and fading where everyone gets their chances at some point.