Not in the slightest.
Most peudo-archaeology stuff like this is built on misinterpreting evidences, selectively borrowing from inappropriate sources, etc. There will be certain pieces of evidence that champion the cause, something that might inspire non-believers to finally see the truth. There's nothing like that here.
So that's why it's hard to explain just how hoax-y these "findings" are. In most other write-ups on similar things, I've taken time to lay out the evidence presented, explain why people think it works, and then debunk the debunkable. That's... not possible here. The largest articles on the Bucegi finds contain zero evidence for the finds. There are no photographs and no recovered artifacts, nothing beyond some dude describing what he saw and some drawings. There's a few sites that connect a host of other theories to the Hall of Records, including giant skeletons (with images originally from a Worth1000 contest series) and, uh... literally anything else to do with Romania.
The entire source is from the account of an unknown David Anderson (who has also invented time travel) and Radu Cinamar, as recorded in their books. Such it is with most similar theories, because these hacks don't have real jobs so they have to make money off New Age sheeple some how. But apparently not with this book. As one reviewer says:
"Can't reveal this, can't reveal that" seems to be the mantra
Trust me, good archaeology isn't exactly swimming in press notices. When we find cool things, we make sure people know. That's how you get things like research funding and don't have to rely on writing contentless books to keep studying. It's really hard to say how Cinamar and Co. are wrong because they're not making any-evidence based claims.
Also keep in mind just how well such a find fits into modern sensibilities: buttons, holograms, scientific field divisions in the "knowledge" preserved, New Age mind energy etc. Archaeologists are hesitant to make claims about things we don't understand frm 600 years ago- that we should so easily comprehend something so foreign as this Hall of Records claims to be is outrageous.
