The link takes us to an article with no stated author. Perhaps Amanake himself wrote it. Who knows. The author and Amanake suggest that one evidence for ancient electricity is "gold plating". In support of this theory, the author links to an article about ancient Egyptian's use of gold:
https://core.ac.uk/download/pdf/81790937.pdf
Gold Technology in Ancient Egypt
MASTERY OF METAL WORKING METHODS
T. G. H. James The British Museum, London
Obviously, the author didn't read the article himself. If he had read it, he would have found that it was very descriptive of the way the Egyptians actually got and used gold including for example:
The melting, casting, and working of gold are well illustrated in a relief from the tomb of Mereruka dating from about 2300 B.C.,, at Saqqara
There is no mention of the use of electricity. None.
The author, and in turn Amanake, make the mistake of linking to articles that do not support their arguments but actually serve to refute them. Whether this is done through laziness or with the hope that no one will follow up on the details of their posts, only they can say. However, I suspect it is a combination of both.
I have found that this practice of "post a link to a good sounding article and hope no one actually reads it" is almost always used by woosters.