Hmm... since gauge tends to widen over time, and provided the guard rails are bolted to the running rail, it might not have been a problem at all.
If it were a problem, then with the draw on a curve, it might depend on which way the equipment passes through the draw. In the pic, going through from bottom to top requires a tightening of curve to get through the frog. Going from top to bottom, however, the curve relaxes to get through the frog and, presumably, creates less chance that a gauge problem would cause a derail.
I wonder if any instructions or timetable notes indicated a preferred direction to run through these draws-on-a-curve.