Abellio do not have access to what others bid (at least legally). Govia will have heavily been dependedent on the franchise staff to come up with their plan; those staff are now employed by Abellio. Who better than the team that's been doing it for years to sort it out? The fact that it looks a lot like what Govia bid is purely incidental...
I thought strict separation of operational teams & bid teams was enforced? It's been mentioned plenty of times in relation to GA where Abellio retained it but on a bid that seems to have had little grounding in operational experience?