Given that FZ faked their destruction during the building of ZD and before Ted deleted Apollo, there is something of a plot hole where had the new generation of humans received Apollo and restarted civilisation at a level of complexity at the 2060’s, that within a few generations it would not be inconceivable that they would either be able to travel through space themselves or otherwise build powerful enough space telescopes to detect FZ on their colony, that would somewhat render their efforts to hide their existence less effective,
In my mind given the fact that they were aware though Hank Saw that Ted had created Omega Clearance and thus having completed control over the entire ZD system, potentially had Ted not independently taken over the system and destroyed Apollo himself, they might have either though creating a clone of Elisabet centuries earlier to delete Apollo themselves or at least removing information from the Apollo database that could lead back to them,
Or another possibility is that given that they were seemingly not surprised by the existence of the current generation of humans given their reactions to the new world, that they had some form of monitoring over Earth and ZD after their departure from Earth, with Tilda in particular being the most obvious indication in wanting to have some sort of connection with Elisabet, with them intending to use some plan to further hide themselves, only for Ted to independently destroy the Apollo database that would render their own attempts unnecessary in their plans
Though they might have knowing Ted had a higher level of clearance than Elisabet, they could have in some fashion gained a sample of his DNA to create their own version of Ted and used his genetic code as the key to overcome the security of ZD as GIAI had no idea of its existence or ability to counter it,
With the hypothetical that given the level of intelligence and sophistication of the Signal that NEMESIS used to activate HADES that was able to evade and easily overcome the powers of a 900 year old GIAI, maybe NEMESIS obtained a DNA sample to access Omega, in unknown circumstances created a clone of Ted itself or gained access to a clone that had already been created but never used by FZ kept on ice, with the potential that the clone given Beta’s name could have been named Alpha,
What do you think?