Sorry @Faizal_Ali that is not now science works. You proposed the hypothesis so the onus is on you to demonstrate it should be undetectable if you wish for it to be taken seriously. In fact it seems trivially disproven by evidence.
I note also another distinction about yout hypothesis and the GAE. My hypothesis does not presume a deceptive God. Yours does. That makes them very different. Yours is a disprovable version of last Thursday-ism (distinct for having evidence against it), but the GAE is more like the Virgin Birth of Jesus.
- No scientific evidence for or against.
- Attested.
- No appeal to deception.
Your example, in contrast, is:
- Evidence against.
- Unattested.
- Appeals to deception.
That is why your proposal is a helpful addition to the conversation. It demonstrates why the GAE does not reduce to the absurd.