The depositors, to be clear, NEVER held the assets under question. They deposited money into the bank that let the bank purchase the assets. At that point, the depositors are not assets of the bank, but liabilities.
Now, the bank's assets dropped in value so that they could not cover their obligations to their depositors. The bank was dissolved accordingly, with their assets sold to another bank. You are wanting to also have their liabilities dissolved, such that the depositors are also somehow punished?