I've been saying Fury's trying to duck Usyk and Joyce for over a month. The guy just wants easy fights. Hes afraid even of Joshua and Wilder IV or Ruiz I. Hes in clear decline and unfortunately for him the process is irreversible imo.
Oh, I'm not taking sides. I think Fury should fight him in Feb/March. Just pointing out his religion is not a new thing and training/fighting over Easter wasn't an issue before. You could be right, though. Perhaps he feels he should act like a good Christian now the spot light is on him and his country, or perhaps he is just giving Fury's camp arbitrary deadlines.
Additionally, Usyk is now Unified Heavyweight champ - back then he maybe didn't have the clout to be able to dictate that he wouldn't fight in April and had to compromise - now he can.