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: August 4 - Twins 16, Sox 3
NEXT GAME: I don't know, but I'll be sure to warn you when I know