I live here and NOBODY I know calls it the "Mercedes-Benz Superdome" EVER!
It's "The Dome" or "The Superdome."

They can call it whatever on TV for what anyone cares here. Just sayin'.
We're also used to Hollywood portraying "the Sheriff" of New Orleans as someone who sounds like Boss Hog. It's duly ignored.

What I do like is we have the MOST POSH, UPSCALE Stadium naming-right corporate sponsor of any team in the NFL. Funny how after Katrina people laughed at us for saying the team would ever return. Much less if someone even dare "implied" Mercedes-Benz would EVER be the sponsor of the Superdome on a TEN YEAR deal, or the Superdome would ever open again.... they would have been laughed off the television.