Bp. Fellay can be different to different people and does respond to opportunities that promotes the brand. The very people he may court in Europe, he would dismiss and ridicule in America. Evidently, he had to get rid of Bp. Williamson and control the American district using trusted French bureaucrats. Then, he fashions a religious version of Disneyland to suit the local temperament and disposition; a trad theme park.
Back in Europe, he senses the climate and sees some scope to return to some hardline Lefebvrism, something the faithful in France and Belgium would notice. This Nativity photo opportunity brings together an assortment of those who oppose the 'enemies of the Church'. At the same time, of course, he does not hesitate to continue dealing with those same enemies in Rome. If there is anything consistent in this behaviour, it has to do with personal survival and ambition consonant with that old Machiavellian way of doing things in high office, religious or otherwise.