MANBLK, BALPA have not asked for nor expect to achieve mainline Ts & Cs in OpenLies. Given the lower Ts & Cs within the startup venture and, initially at least, limited route structure I doubt very many BA mainline pilots will be interested in either seat. A few may well be for various reasons. Therefore, there will be plenty of positions for those not in BA who care to apply and make the grade. To say BALPA want those positions for BA mainline pilots is as inaccurate as it is a distasteful thought.
Those new employees in OpenLies will have the benefit of being on the BA mainline seniority list. That, long term, offers them protection and influence plus the ability to transfer and also prevents OpenLies being used to drive down all our Ts & Cs.
Are you being deliberately obtuse or just not listening?