Yes, the system ladderline to antenna, correctly matched with a balanced tuner has practically no radiation from the feeder, due to the self-neutralizing on the parallel-wires by the counterphased RF-currents. Another reason is the strictly symmetrical layout: there is no need of a support from the ground, such antenna is self-supporting! Arisk of coax-feed antennas is a possibility of radiations from the coax, if there are bad swr-values in operation, due to non resonant antennas. These RF-voltages from the coax are floating "in-house", there causing TVI and/or BCI!