I think it isn't. It didn't say anything about the Nether Gold Ore there and i personally think this is a bug itself.
If you don't believe me, try to mine Nether Gold Ore yourself and tell me if you hear anything.
https://youtu.be/OmDryUS2_QA
I will add a video to prove it to you.
Maximum.
Milan Radic
I think it isn't. It didn't say anything about the Nether Gold Ore there and i personally think this is a bug itself.