Browsing through the site I came upon a mention of a sister church in the Genuine Orthodox Church "of the Patristic Calendar." Wondering why it couldn't just be "Old Calendarist" - perhaps a meaningless distinction - I was bewildered.
Seems like a sensible position to take. Since the beginning Christians have embraced, modified, discarded and clarified labels and terms to describe 'right believing' Christianity and distinguish it from opponents. Calling it a 'patristic calendar' emphasizes that it's about holy tradition for them, and that they are not merely holding to 'old' stuff because of some notion that ancient stuff is inherently better, or out of some stubborn refusal to change from fear or inertia.
The issue isn't that they refer to the Old Calendar as "Patristic" but that the name of their body is specifically the "Genuine Orthodox Church of the Patristic Calendar." While I understand that they are trying to distinguish themselves from other churches and New Calendarists in particular, that distinct phrasing makes it seem as though the calendar is much more important to their faith than it probably is, important as it may be.
While I realize that this is where the similarity likely end, I thought it amusingly similar in name structure to the fictional "Monastery of the Sacred and Life-Giving Calendar" noted in my linked article.