To bad OKC is small market and it seems that people are not focus on the achievement they acquired.
People are to focus right now on current free agency that's why there are lots of speculation happened on each team also for players got involve on the discussions happening.
I also guess people are done discussion about what happen on the championship since people now discuss about those adjustment,trades and other things since people want to see new good action on their favorite teams on next season.
This is the reason why we usually see the same teams usually win many titles while others don't. And I know that it has been a while since we saw a major market end up with a big run, but that has been the history. Boston is a huge market and won last year. Golden state wasn't a huge market, but did became a huge market when they got taken over and became the de facto "silicon valleys team" which has billionaires and rich folks so they do make profit even on bad years now. That's how you know you are a big market team, you make money, even on bad years.
There are very few teams that won many titles while being a small market team. Spurs is one of them, but rest could be considered bigger, Boston, Lakers, bulls, Destroit, Philly, these are bigger cities than San Antonio and Oklahoma.