Yes he was definitely 14 when it was created, possibly earlier actually because it took him like 2 years and many more after that to get his stuff out there. he's like 20 now apparently. I personally don't think it's too unsettling, Vacuum, the first album from Pensees Nocturnes has some creepy ass shit in it, i can't even handle it without feeling depressed/sad. I don't think that stuff ruins anything for me, I can learn to clear it all out if there's something that would change it for me, which usually there isn't. If i like it then whatever, if i don't then whatever.
Also I just can't get to grips with the lo-fi buzz stuff, i know of course there's monetary and other circumstances limiting a productions quality but blatantly crackling plastic wrap or recording their echo or whatever the fuck else they do is just stupid. you can prove a point/create your mise en scene without being an asshat about it.