What you describe barit1, is a crew error, and a REVERSABLE crew error at that.
Without any access to the report, I am of the belief that, right up to the last the crew were unaware of their error. Had they been aware, or any of the rest of us been aware in the same predicament, none would have had any hesitation in re-starting the inadvertantly shut-down 'good' engine. That's not a re-start of an engine that's suffered a fire / fire warning, but the correction of an error.
If we go all the way back to the original post, and insert the Kegworth circumstances to the scenario, it illustrates well the inadvisability of the deliberate continued operation of an engine which has suffered a fire.
Regards,
Old Smokey