If you do this long enough, you'll see some of everything

. Last year the following occurred :
(1) QB scrambling and outside of FBZ;
(2) he dumps pass that lands at big ole' Bubba's (OL) backside ;
(3) I

for IG,

, coach asks for TO

(4) Coach : "pass went over the LOS

"
Me : " If it did, your OL was IDF , both 5 yarders

"
Coach : "AYUH, 'spect so

"
I realized later that ,while IG is a spot foul, IDF is from previous spot.

When we wrote this exception, we felt that when in doubt no flag is the best result. In response to the OP, if the pass landed beyond the LOS OOB I wouldn't worry where the OL's were.