The ability access such accounts and modify them or cancel them is an important one in this day and age of highly utilized technology. The new law does not change or impair the rights of the digital provider under the entity's service agreement, but it does advance the cause of the user's representative to handle matters for or on behalf of the user.
Perhaps it is time to review your documents to ensure that that you have provided such authorization in your documents and your digital assets can be controlled along the same manner as your physical assets.