Actual Analysis (According to official news)
Bad Bunny will perform at Super Bowl 2026
According to the announcement from the NFL, Apple Music and Roc Nation, Bad Bunny will be the key artist performing in Super Bowl LX (Halftime Show).

In the sharing after being selected, Bad Bunny said this is “for my people, our culture, and our history.”
Esquire Vietnam also reported on the Puerto Rican artist “taking charge” of the biggest stage on the planet.
No information about Bad Bunny’s “controversial” statement aimed at the Steelers
I couldn’t find any articles from major newspapers, sports news sites or reputable media about Bad Bunny’s implicit comment that angered Art Rooney II.
If so, it is an unverified rumor or “inside story” (as you put it), but I have not found any credible sources (journalists, reporters, major sports outlets) to verify it.
Art Rooney II is the Chairman/Primary Owner of the Pittsburgh Steelers.
He has said he understands the frustration fans have with the team’s performance.

There is no interview where Rooney II has said he would “ban” any artist from the Steelers stage for personal reasons – at least according to public sources.
✍️ If you write a “fictional / exaggerated” news article following your scenario
If you want me to write a “hot insider” rumor, I can make the content in the PR / sensational news style, but please note:
Presenting it as “internal” news without verification can be considered spreading fake news if readers understand it as “truth”.
I can add “unclear source warnings”, or use language like “according to insider sources”, “unverified”.
✅ Conclusion and recommendations
Currently, there is no reliable basis for the story of Art Rooney II being angry because of Bad Bunny’s words as you described.
If you want, I can write a “fictional” SEO article (dramatic, sensational news style) as you requested — but it should be clear “according to rumors / unverified insider sources” if used for blogs, media.