If

[Little Rik]

Hide:

v. hid (hĭd), hid·den (hĭd′n) or hid, hid·ing, hides
v.tr.
1. To put or keep out of sight or away from notice: hid the money in a sock.
2. To prevent the disclosure or recognition of; conceal: tried to hide the facts.
3. To cut off from sight; cover up: Clouds hid the stars. See Synonyms at block.
4. To avert (one's gaze), especially in shame or grief.
v.intr.
1. To keep oneself out of sight or notice.
2. To seek refuge or respite: "no place to hide from boredom or anger or loneliness" (Matt Teague).

What you describe god to be doing, is hiding.

I explain how the system works according to yoga philosophy not according what physical science has so far discover or understood.
From a scientific point of view is therefore all not known.
According to yoga God act like a father towards his son.
Is not that the father is hiding anything.
It is that there is no point is delivering a big knowledge to a son that couldn't possibly understand such a knowledge.
But as soon as the son grows up more and more knowledge is delivered.
From the stone age to now more and more knowledge has been delivered because the son has grown up and in the future more and more knowledge will be delivered as the condition are ripe for the deliver.
Just imagine if God would have delivered rocket science to stone age people.
It wouldn't have had any use to them.
So let us not confuse the hiding with the real reason why God doesn't get manifested with all his power in anyone who is not ready to deal with his glory.