That is the intention. Each logistic network has a central controller that distributes jobs among the available AG Malls. Each mall crafts one recipe batch, finishes it, and then waits for its next assignment.
They are mainly intended to fill temporary shortages or produce small quantities of items that do not justify a dedicated production line. They are not meant to replace high-throughput production for frequently used items.
I do add more AG Malls as my factory grows, but you should still use dedicated production lines when you need large quantities.