Hmm, not sure.
My understanding of O'Brien and Brierley is they failed because traditionally the medical, contract signing and PR was done at Brockhall but the paperwork was done by the admin team at Ewood Park. We where playing at Birmingham that day and the 'footballing' team at Brockhall believed they had sent all the relevant information back to the 'admin' team but something went wrong between the two and the details weren't submitted properly. GB took responsibility for it and has moved the 'admin' team to Brockhall nearer the deadline so that everyone is in one building to ensure it happens properly.
The McGuire issue is different and an internal investigation is still happening. It's ALLEGEDLY one persons fault - human error, that literally clicked the equivalent of 'submit paperwork' but not 'send submission'. I don't think at any point GB has taken responsibility for that.