Tbh I think you just have to look where BMI ended up in it’s role as a Star feeder at LHR. Little Red has basically just filled the BMI void on those routes.
I think maybe during the bidding process VS should have sat down with Aer Lingus and come to some sort of arrangement. VS withdraw from the bid for the slots and support EI. Virgin to have a percentage of the seats on each/certain flights to sell for onward traffic leaving EI to sell the rest to the low cost point-point market.