AFT is not the only source of Modulars for FlyBe, just the only FTO on their list that is Modular only. I'm pretty sure FlyBe will take Modular grads from Cabair and Oxford, but I'm not sure the schools recommend many Modulars to them, so it may be a matter of battling the herds who apply online. If you want FlyBe and haven't started yet, perhaps FlyBe MAPS at FTE is the way to try first.