NYer, the Latin Church does not know if +Nicholas is really a saint. Were the Latin Church to return to its traditional Orthopraxis and beliefs, those doubts would be gone and but for the fact that the relics are stolen and in the hands of the successors of the original thieves, it might be appropriate that they stay with a particular church which indeed does venerate +Nicholas as a saint.
Not this thing again. Yes, we do. St. Nicholas must be one of the "ones in doubt" then, like St. Cecilia and St. Christopher, where some nut decided that they probably didn't exist - and then started teaching that. That doesn't make it true. On this particular topic we're fighting a war from the inside. I actually heard someone say that St. Cecilia probably never existed and then less than a year later I went to her original grave at San Calista.
Remember, there are forces actively trying to destroy the Faith by casting doubt on a whole lot of teaching and Tradition. From inside the Vatican. It frustrates us just as much as it does everyone else.