Fair enough on your ruling; However, the rules were meant to crack down on the idiotic driving under the caution. (After the South City round, where a large part of the drivers were making fools of themselves under the cautions and damaging competitors cars). You were not yet part of the league, and presumably haven't seen how bad it was. I highly suggest you look into it and see why this behavior has to be stomped out.
Spinning your car out under caution is perhaps the most laughable thing there is to do in racing. Endangering yourself and your competitors during a period of caution should be amoung the worst of offenses and punished without remorse; the behavior needs to be made an example of what not to do in the IGTC.
As for "stopping behind the spinning car", I cannot think of a real life series that does not include "maintaining a cautious pace" clause, such that you have to drive safely under the yellow to maintain your position.
Spinning under yellow should warrant the pentalty of lost position(s), drive-thru, or worse.
Edit 2,4 -> As for your ruling, its acceptable only just. The rules, in fact, are Very explicit. There are
no clauses saying it is okay to retake position under Safety Car Caution in ANY case.
Since you can do so, please move the LOTF FXR entry up the 2 positions it needlessly gave away under the caution period, yielding after it spun.
Also, Please penalize the 2 cars who passed the LOTF FXR 1 lap each, for Passing under caution and failing to yield their improved positions.
Edit 3 -> And furthermore, what if the spinning Cyber car had spun into a competitor, damaging a competitor or resulting in a classic LFS "physics glitch", and thus resulting in a DNF for another compeitor? Would this go unpunished? Driving wrecklessly under Caution simply cannot be tolerated, much less go unpunished. I am at a loss to understand this dumbing down of the rules to please the lowest common denominator. What happend to holding a higher standard?