It just deepens on how much trouble they cause. If someone takes a wrong turn, and it *doesn't* result in a runway incursion, and it doesn't cause a conflict with other taxiing aircraft, and it's easily resolved by ground control issuing amended taxi instructions, it's quite probable that nothing would ever come of it.
In this particular situation, a wrong turn at that that location would probably result in needing a tug to unwind the situation, even if no buildings were contacted and that sort of mess usually triggers reports and investigations.