The ruling wasn't made
purely because of ARB's though. Sure, they helped make the decision easier, but honestly, being able to waltz into Site 9 and not have to worry about your RB dying because you've got
Filibert Bolger out really does take some strategy out of the game - all of a sudden you've only got to survive until Site 8 instead of 9, know what I mean?
Decipher made the ruling both because of ARB's and because it was easier than issuing errata for multiple cards.
In fact, Reflections did not release until May 12, 2004, while Decipher released the first CRD after the Comprehensive Rulebook 3.0, issuing a clarification of OEG!:
§ O ELBERETH! GITHONIEL! 2 R 108
As skirmishes involving the Ring-bearer cannot be
cancelled, the skirmish action of this condition can
only be used to take off The One Ring.
Is this enough evidence for everybody?