I've played zombies since I beat the WAW campaign on it's release day in 2008 and it was just a small bonus gamemode 
The Der Riese clock is stuck at 1:15, its a play on element 115, that's it.
No offense but it seems you're just pulling assumptions from thin air.
And in all respects if in Origins they say "The clock on Der Riese was to symbolize they've always been stuck in a paradolical time loop", by all means, play the "I told you so" card 