the very first part of your statement sums it up in my opinion. Make the call. Too many officials don't view "no attempts to score" as stalling, they view "prevent defense" as stalling.

i feel the college OOB rules would help with the backing up to the line "stalling" technique"

i think adopting a passivity type guideline would help officials make a stalling call earlier in the match, rather than waiting until 10 second left in the 3rd period