you may be being too harsh.
I understand [that having the money in the bank anyway] Wiltshire bought the airframe to help out the failing AOC holder on the assumption that the move would mean the AOC holder would therefore survive.
When the AOC holder still went to the wall they were faced will having to get their own AOC from cold or go to another AOC holder to take on the Bell 429 [which might have cost Wilts at least the same as getting their own].
as it turned out the technical problems at the time probably convinced them that all would be in place by the time the problems were resolved. Aviation rarely works that way