score:2
So it looks like Darcy O'Brien was right after all, there are some hidden popes. Upon further f-12 inspection, it appears as if St. Linus and St. Peter were somehow excluded from their rightful place within the <div>
tag of popes.
Clicking on 1st century popes will show them, and they will remain visible when you go back to "filter by century".
I checked the wayback machine for this and it appears to have been a problem for a long time, which makes me wonder where someone can submit a bug report...
Thanks to Grateful Disciples insight, I further inspected the page and noticed that they're not hiddne popes after all, the div tag they're supposed to be in just has its width miscalculated.
position: relative; top: 0px; left: 0px; width: 36682px;
Apparently 36682px is not enough, we need 36947px to hold all those popes! Incidentally, 36947 - 36682 = 265, which is $number_of_popes-$number_of_antipopes-1
which probably means someone in marketing said "we need padding between these popes" a while back. Which leads me to believe this is an off-by-one error, not a Masonic plot to exclude the first two popes.
Still, it ruins the effect of "hey look at these popes", which is probably a good thing for Catholic Internet humility.