Well, that's definitely the difference right there:
1) I haven't been hardened to Sportscenter and ESPN's broadcasting style. I've never bought into the whole "BSPN" meme but, more important than that, I simply don't watch Sportscenter because it doesn't meet my personal needs. I don't actually care about any sport other than basketball, and I find ESPN to be woefully inadequate for basketball coverage, so I don't actually watch ESPN at all, unless there's a game on, or to watch PTI.
2) As I am not actually a "sports fan," as such, I could give a rats *** about "hardcore" sports coverage. As I've mentioned before, my favorite sports personality of all time is Tony Kornheiser, precisely because he's not a hardcore sports meatball, and doesn't, in fact, take sports seriously most of the time.
I want to be entertained, and I want the glossy presentation, and NBATV's coverage works for me in that respect. I grok that it doesn't for other people, and that's all well and to the good. What I don't grok is when people say that personalities like Kamla and Snow are "terrible." I mean, I grok why somebody would think that Payton is terrible, the same way that I grok why someone would think that Angela Tsai is terrible, even though I don't particularly agree with either opinion... But, at least in those cases, I can evaluate them according to a criteria, and agree that they are deficient in their jobs in certain aspects, based upon said criteria. But I evaluate analysts such as Snow and media personalities such as Kamla according to different criteria, and I don't find them to be deficient on any technical basis, which reduces it to a matter of taste.
It's funny: nobody who knows me IRL would describe me as "easily amused" but, if liking NBATV's production earns me that label in your eyes, so be it.