then she would lose the deposit transaction option for calling her multisig on Optimism
Can’t they just add the aliased address as authorized on their account?
There’s also a new footgun where Alice might try interacting with another L2 contract from L1 without realizing that the msg.sender would now be aliased. I won’t bother to contrive a scenario, but undoubtedly someone will find a way to lose a lot of money.
I’m not very familiar with how L1 → L2 calls are typically being utilized on OP, but I am not sure why the aliasing here would cause a loss of funds? I would expect whatever transfer is happening, the assets would now simply be associated with the aliased address on the L2 and the user would need to possibly send another deposit tx to call as the aliased address?