It's simple. EGM is full of misinformation. Always has, always will. The screens are definitely SOTN. They're speculating, with no actual proof. SOTN was never known as Castlevania 5, except for this article.
And they said that there was no Castlevanias since SCV4. They completely forgot about the outstanding Castlevania Bloodlines.
I know I sound harsh, but that article is terrible. Typical EGM.