Faith that we can win a championship?
Honestly I'm just really tired of this being the metric we always jump to. And I'm not trying to single you out. Your post is entirely reasonable.
I'm just sick of focusing so much on "good enough to win a championship" as the bar for whether the team is worth taking seriously or not. You know what? Every single team is not good enough to win a championship until that group actually does. Every season we see a team that will be really awesome statistically on both ends, win a lot of regular season games, and then fall way short in the playoffs. Similarly we see teams that look mostly mediocre during the regular season who nonetheless make deep post-season runs.
The Heat made the Finals last year and went to game 6 against a team that had the two best players in the series; even so, this season they're struggling to get to .500.
The Bucks have had multiple historically great regular seasons, winning a ton of games, enjoying a super high point differential, and leading the league in offense and defense. Yet we've seen them crumble before they even get within a stone's throw of making the Finals, let alone having a shot at a title.
So it seems like "good enough to win a title" will always be this subjective measure that is influenced a ton by the biases of the person talking about it, and it's never possible to really prove that a team IS good enough until it already has, at which point it's no longer up for debate. That makes it kind of an annoying and mostly useless metric, if you ask me.
Is this group good enough to win a championship? No, obviously. I know that because they're not playing basketball very well right now and teams usually have to play basketball really well to win a title. But they could be playing super well and we would still have no idea if they can ever win a title.
I'm more focused on this --- is this group good enough to play really high level basketball consistently for sustained periods of time (as in multiple seasons)? Do they have it in them to become a group that closes out talented opponents in tough games instead of having these fourth quarter collapses so often? Will a team built around the current faces of the franchise -- Tatum, Brown, Smart, Kemba -- ever be one of the signature teams in the league? Or have they already peaked?