[Fons Adriaensen]
That means that when you put the bass off-center, your
level
meters may well show 'out of balance', in particular if they
have a small range as e.g. a VU, during the entire song.
Many sound engineers probably dislike that, even if it does
no harm at all.
They might dislike it because it implies the energy budget of the
transmission isn't exploited maximally. :)
Cheers, Tim