Not quite sure what you're not getting.
- Most people, I think, esp. around these parts, think that OKC is turning into NBA championship material largely because they committed to tanking.
- While Chet is great and increases the Thunder's ceiling, it appears that OKC is a true contender whether he plays or not or not.
- Since Chet is OKC's only big-time reward currently on the roster from finishing with a terrible record (depending on how you regard Caruso, I guess), it can be argued that OKC's success is not due to tanking. Chet is super, but it's easy enough to imagine the Thunder winning a championship even if Chet's not available.
SGA is a bonafide MVP candidate. The supporting cast defends well and JDub is a pretty good 2nd guy, but it's mostly the SGA show right now. Your point is taken though. That team is well built with tough, defensive dudes who play hard and make enough shots. Hartenstein was also a good pickup. SGA, JDub and Cason Wallace were all drafted in the 10-12 range. Dort was a UDFA.
If the Jazz, as currently constituted, had this version of SGA on their team, the Jazz would probably be a top 3 team in the West.