Well if they want to make a plausible, winning argument in court it kinda is, no?
At least who the obligations remained with at the time of the purchase -- whether with the original seller, or if LucasFilm was split into multiple separate entities at the time of sale, or what.
"Not my problem but I don't know whose" does not tend to be the strongest possible legal argument.
I don’t see why this would matter. All Disney needs to show is that they only bought the rights, not the obligations. It’s not their job to figure out who those obligations went to.
At least who the obligations remained with at the time of the purchase -- whether with the original seller, or if LucasFilm was split into multiple separate entities at the time of sale, or what.
"Not my problem but I don't know whose" does not tend to be the strongest possible legal argument.