I've never once heard an opposing team ask another team to not celebrate on their field because of "safety." Sounds more like the D-backs have some sour grapes over choking away the division they led as late as July 21.
2014 Obligatory Attendance & Record Tracker
LAST GAME: May 31 - Padres 4, Sox 2
NEXT GAME: Maybe never? Apparently I am bad luck