They do not expect the ITS to hold any tokens; however, this invariant can be broken in a number of ways:
QA, considering this doesnt necessarily have any impact on the protocol. But if these assets would be considered protocols after getting into ITS, then a random user could steal them due to the previous assumption that the ITS should have no balance.
Consider not directly relying on the fact that on a normal note the ITS should not have any balance and instead have functionalities to contain this.
