Originally Posted by
xarantine
In economy there are far more seats together (because there are far more seats!). BA’s seating algo does indeed try to put people on the same PNR together, but if all the “together” seats have been booked, then there’s nothing it can do.
Yes I imagine it's not in BA's interest to split couples up on purpose in any cabin. Similar threads to this one often appear on here yet I've rarely seen one complaining post flight about being split up. Which indicates, it either doesn't happen that often, or being seated apart turns out not to be such a big deal after all.