that smug Vince look after he said it leads me to believe that shyt wasn't planned. I guess Booker being there it means it could have been planned but I could see a script like this
Vince comes out greets Cena
Cena responds
Vince gives exit reply
Vince then walks past Booker and Wife
Booker says "did he just say that"
/scene
I remember seeing that shyt on tv and wondering "why the fukk was that done", it ain't have shyt to do with anything and it came off as a way for a cac to say nikka on national television in front of another nikka. shyt just seemed funny and given the track record of Vince and WWF/E fell in line with their "racist" shyt. Either way I don't give a fukk but you can't deny that shyt looked suspect as hell. Why we ain't have Henry call Cena a cac or honky who want's to be black when he was heelin shyt up?
With some people it just rolls off their tongue.
Why did Vince say nikka on TV too, I swear I couldn't believe that shyt what was the story behind it?

It was done for shock value and comedic effect, like you see in comedy shows. Vince is talking to Cena, spuds( fist bumps him), asks "what's good in the hood", then as he leaves says "keep it up my nikka" to Cena when Booker T and Sharmel are conveniently standing behind him, does his power walk which leads to Booker's trademark reaction and phrase "tell me he didn't just say that" ,

of course it was planned and scripted as it was clearly
situational humor with Vince using the "pretty fly for a white boy"(a White person acting "urbanlyblack") trope.
Reminds of the segments where Shelton Benjamin told Yoshi Totsu to stand back or he would call Godzilla and when JBL went to the U.S border to prevent illegal Mexicans from crossing the border

.
They've always done highly offensive/stereotypical gimmicks and spots.