Correct, it’s currently for display only. You can use it to manually check if there is any broken lines, for example, if the current is too low when a zone is on, that generally indicates the solenoid is not activated.
There is no plan yet to use the current sensor for triggering any actions, although similar to the Flow Alert, it’s fairly easy to implement a current sensor alert. Note that often when there is a shorted circuit, it would result in a tripped fuse, or the power supply voltage collapsing triggering an immediate reboot — there won’t be enough time for the current sensor to even read a reliable value.