detail sony pc companion with update for sony xperia z and sony xperia zl

The Sony Xperia Z and Xperia ZL receive an anti-root update

The Sony Xperia Z and Xperia ZL already have the possibility of updating their firmware at their fingertips. The negative part of this latest update is that its installation implies the immediate loss of root permissions on the device. Is it worth flashing it if Sony has already announced that it will update the entire Xperia Z family to Android 4.3?