Except I don't know that at all.
I know that the vast, vast majority of championships are won by elite regular season teams. If you're not an elite regular season team, your chance of winning a championship is more or less nil and the amount of weirdo one and done championship runs in the last ~30 years can be counted on one hand with fingers to spare. St Louis & the Kings 1st cup run. That's it. That's the list. If you think that I value a mediocre team winning a few rounds surrounded by seasons of mediocrity (or worse), you're out of your mind. Even the two examples I provided above were top 5 teams in the 2nd half of the regular season. Both started their cup runs in January-February basically. If you're not good enough to be dominant in the regular season, you just don't win a cup and I could seriously give zero fucks about being 6-7 in the conference and sneaking a series win out.
It's why we get mocked, but you're all idiots for mocking it. The measure of success is being good enough to win a cup, point blank period. Only elite regular season clubs win cups, again, point blank period. All you can do to somewhat control your own destiny is to build an elite team and then pray to whatever god you believe in when spring rolls around. All of these one and done weirdo runs (yes, like the Habs recent run) provide evidence to this point. If you're a mediocre or worse team that won a few rounds, the worst thing you can do is to fall in love with the smell of your own farts and double down on a bad team.
Will this Leafs group win a cup? Dunno. Are they the type of club that wins one though? Yeah, they are. Top 5-7 regular season club with no apparent glaring weaknesses (goaltending tbd). One of those wins the cup almost every year.