Why reschedule a flight by 10 minutes?
[New poster; I hope this question/grumble is in the right place/ok to post here.]
Why would an airline (in this case BA) reschedule a flight by just 10 minutes? Of course as SLF I wouldn't care, except that we were booked with a 1hr35 minute connection at Heathrow that changed to 1hr25, so BA's computer rebooked us for a completely different time of day, and customer services were very friendly but say they can't get us back on the originally booked flights, as their computer system won't allow it.
I'd understand it if there was an operational reason for a significant change in the timetable (though it would still be annoying), but it seems ridiculous for 10 minutes. If the slot time has changed (or something - I have no idea what the reason might be, which is why I'm asking), why not just change their own internal schedule but leave all bookings valid?