One consideration of using a balanced cable is that it is a locking connector, maintaining good connections even when other cables are messed with.
RCA cables can be inadvertently moved and the connection can be altered (i.e. left signal stronger that right) (or a ground can be dislodged).
I use XLR when they exist, and all my individual device's RCA cables have 'locking' type connectors.
https://www.gcaudio.com/tips-tricks/locking-rca-connectors-the-proper-way-to-use-them/