Metro city has as it's power core a spider dynamo? That's Koranic. That's Proverbs.
"...The spider taketh hold with her hands, and is in kings' palaces...." proverbs 30:28
There are many more references to spiders in the world's literature, if you care to find them. Siezing upon such accidental similarities as this shows your lack of magination. You seem unable to synthesize new things from your base of knowledge.
The spider is the city's electric power core. It acts as a hub, using its legs (there are 8 on a spider, but only 6 here) as spokes of a wheel, through which power is distributed to various locations. It was made a robotic spider because that would be more interesting than some other form. Because it would be animated in the later part of the episode, an electrical distribution hub that could also act as a giant spider seemed the better choice rather than something that in itself was not associated with a creature than some feared.
I will not comment upon the chain of historical events, because its just too feeble. Anybody can string together unrelated things, claiming by force of words alone, that they are related.
After such an attack upon your argument, I know what you are going to say, so I will say it for you: "Well, I didn't expect a kind of Spanish Inquisition".
