It sounds like some employee/management mistakes looking at the report. Gotta imagine food service industry has a huge range of abilities working in it.
Again, ownership hires catering companies to handle this, not sure why it's apparently like they're telling the catering company, "don't clean the mold."
Yankee Stadium being dead last is hilarious to me because they spend an insane amount of money on food service (for the suites!) and have contracted out their food service company Legends to the Cowboys and other teams.