Doc Rivers knew all about Donald Sterling before he took the job. Doc Rivers knows all about Shelly Sterling shady past. Doc Rivers more or less just cares about making Doc Rivers look good, so if that means ignoring Shelly Sterling and calling her the #1 fan, he is willing to do that. Because truth be told, this whole situation has made Doc Rivers more powerful within the Clippers organization.
The Big Lead breaks down all of Shelly’s past suspect behavior (considering she is still married to Donald Sterling, it wouldn’t be a huge leap to say she shares some of his beliefs). Sometimes in life you have to give a little to gain a lot. The voluntary sale of the Clippers doesn’t happen without Shelly’s cooperation and for that she will get her silly perks and Doc Rivers will try to justify it the best way he can.
Just part of the business.