Is 'Hydaelyn' a misnomer based on a misconception?

[Lersayil]

Ah those ruins, you are half right.

The ruins you encounter in the end game are not Amaurotine in origin, at least not how you think. In truth, they were created by someone who had fleeting memories of the original star. The same thing exists in the Ronkan Ruins and was elaborated upon by the developers. We dont actually encounter anything from the original star, just the facsimile created by Emet-Selch. The ruins are of First Origins.

Citation needed.

The ruins are clearly stated to be built by "Ancients" with unkown and non-reproducible means. The technology used is stated to be very high above anything the Ondo or the Scions could imagine, or even put a dent in. Its pretty clear that the ruins are not of Ronkan origin, who were to our knowledge the most advanced faction of the First (and remember they did not have any Calamities, so they have better recollection of their history and ruins).

It is also stated by the Ondo, that they associate the ruins they use and the ruins that "lit up" by the return of the ancients.

The murals in the Ronkan ruins are of a different matter. They were clearly constructed by the Ronkans or their predecessors post Sundering, to record the fleeting memories of the pre Sundered world... and it was stated as such by non other than Emet too.