LHR is full; BA needs to launch additional medium/long-haul routes to help compete with LH/LX/OS/SN and AF/KL/AZ (along with several others) and EI is one of the biggest holders of slots at LHR (who operate on routes already served by BA)
You raise a good point, I totally agree with you when you say that BA should just stop flying to and from Ireland so that they can use the slots else where to do their long haul routes.
This would help EI increase their yields on the DUB - LHR market which would be good for BA because they're so close to EI, and if EI make more money this must be good for BA.
That was your point right?