It would seem that a 'trust account' is no more property of the trust than your bank account is property of your mortgage. I realize it's a little different but, think of it. It funds the trust, it's not an item of the trust.
Schedule A is for listing assets of the trust. Does not have to be a NFA item. It can be anything the trust owns. Your trust is not active until you have property listed in the schedule A.
I think this is the point of having an EIN. The EIN adds a level of "existence" to the trust. The bank account is tied directly to the trust via the EIN, thus funding it.