These days some people think B&W and film itsself is prehistoric. Point is, it's not the photographer's fault when a journalist beats up a story.
Furthermore, lens or pinhole, neither guarantees that you'll produce art. It's not even for the artist to judge.
If you like photography to regular painting or rendering, you wouldn't criticise anyone for using charcoal, with it's low res approach, is B&W too, nor if they use a limited colour palette, or even if they choose to not use perspective.
So what's the issue when someone enters a pinhole photo, which just happens to capture the mood in the eyes of the judges.
This is not the fault of the artist. I haven't even seen the work, but the debate is intriguing.