Good point
Wikipedia says: “No team has played the Super Bowl in their home stadium. The closest have been the San Francisco 49ers who played Super Bowl XIX in Stanford Stadium rather than Candlestick Park, and the Los Angeles Rams who played Super Bowl XIV in the Rose Bowl rather than the Los Angeles Memorial Coliseum.”
Further down:
“There Has Never Been... a team which played in a Super Bowl in their home stadium.”
However METRO AREA is not the same thing, true.
The Super Dome has hosted more Super Bowls than any other venue. I always thought it was the name.