The common convention when displaying a game board vertically is to orient it such that it matches black’s perspective (i.e., black is seated at the bottom edge and white is seated at the top edge). This practice is common across various situations (e.g., recorded games on paper/books, computer screens/software, and even large magnetic analysis boards that people stand in front of).
So, yes, I think you are right. The name labels around the thumbnails seem to be backward, with white at the bottom edge and black at the top edge.