Clearly, Kim's system still has to prove itself. And, has been said above, that happens by winning, especially important games. Everything else is just noise.
That said, it's very human to notice, remember, and treat as important what we see as threatening to what we want. In our minds, the bad always outweighs the good. We'll even treat the ambiguous as bad because survival emphasized seeing threats more than opportunities.
But, there's a time when negativity bias is particularly pernicious: the early stages of a developmental effort. Whether it's starting a business, writing a book, or raising a child, over-emphasizing (which is the natural tendency for us all) kills growth. But it's pernicious, because it makes us look smart. Unlikeable, but smart. I could be a high-percentage restaurant reviewer even though I don't have a sensitive palate or any experience with running a restaurant. I would just need to go to every restaurant opening, write a scathing review citing whatever, and predict it's failure. And I'd be right a huge percentage of the time, because most restaurants fail. Same with coaches. Most new coaches fail to achieve what they were hired to do, and even those who do get criticized for not doing better (Rick Barnes).
The counter to negativity bias is appreciation. Appreciating strengths, looking for what's working and building on that, or, as one researcher called it, "the ability to see the mighty oak in the acorn." It's what the new and struggling, be that businesses, ideas, books, children, or basketball systems. I get that this is often a place to vent. But I suspect we are all putting too much weight on the negatives and failing to see the positives.
Go, Kim. Coach 'em. Help 'em grow, individually and as a team. Your style of play is fun and interesting to watch, and that's what I'm pulling for.