It's not even playable.I'm now starting to think that this really might simply be someone that is trying to get his stuff connected to Kojima and Silent Hill any way he can and has been trying for yeeeears - in the updates to it they're talking about having a playable trailer which is basically what PT did a year before that kickstarter etc.
I'm losing faith
There is absolutely no way that Kojima or anyone would've been teasing this in 2015 basically straight after getting dumped by Konami
The person obviously saw what people were connecting to him, and is leveraging that. Purposefully using words to make it sound related to PT, after the fact (he knew he was being conspiracy theoried.)