I have been kind of following this discussion and I don't have a firm answer as I have never tried growing "pre-cooled" lilies. But I can provide my opinion of what I think is going on with these lilies.
Oriental lilies naturally bloom in late July-August, then they sit and rejuvenate the bulb prior to being harvested, usually in October. If these bulbs are being sold in October as pre-cooled, that suggests that most likely they were harvested LAST year and kept in a cooler all this time, perhaps just below freezing. That is how they do it in the cut flower industry. When they come out of the cooler they are primed to grow. It is also possible that the bulbs are coming from the southern hemisphere where the seasons are reversed from ours. Either way, the bulb is trying to grow outside of its natural season. It might be ok for places like coastal Southern California where they could then grow all winter long and then bloom earlier than they do for the rest of us.
So I guess the question is, can the bulb survive trying to grow outside of its natural season. I don't think it would be happy in the house because they need cool temperature to grow roots. If they grow the stem without roots, the bulb is depleted due to lack of additional nutrition acquired via the roots. So if you decide to try it, I would go ahead and plant outside. If the sprout freezes that would be it for the entire next year. That would probably be a good thing, then the bulb could concentrate its energy on roots. If this all stresses the bulb too much, it might just decide to save itself by making bulblets at the base of the scales, instead of a stem in the spring. Same with your bagged lilies that have been sitting around-- get them planted. I wouldn't let them bloom, cut any buds off and let them settle in for the winter.
One thing I would like to say is, lilies are a whole different type of bulb compared to say tulips or daffodils. The scales of a lily are really modified leaves that grow underground. On some lilies they can propagate above ground on the stem, drop off, and pull themselves into the ground to grow. When they are out of the ground for too long they get dehydrated. This is why they should be planted as soon as possible when you get them.