I don't know how long you are following NTEK and Ultraflix, but if your count is right and there are 52 movies available now, these were not what David Foley tweeted about. He tweeted about 50 new titles that would be added in addition to those that were already available at the beginning of December, including those of the Dragon TV 4K channel. I you would be right, there should have been 2 on Ultraflix when he tweeted on dec 3. Thats is not correct. I would guesstimate that at the beginning of December, there were already between 40-50 titles of all kinds available.
So to address my point, Foley has not delivered yet.
That said I can understad that it takes some time before content can be published on Ultraflix, but his tweet could have been more clearer as to when they would be available, or to what they were added.

From the NTEK facebook page, 22 dec.:
Available Dec 23 on ‪#‎UltraFlix‬ Fully restored & remastered in ‪#‎4K‬ “Rain Man”
Available Dec 23 on ‪#‎UltraFlix‬. Fully restored & remastered in ‪#‎4K‬ “Fargo”
Available Dec 23 fully restored & remastered in ‪#‎4K‬ on UltraFlix,
“RoboCop” – winner of 11 awards
Available Dec 23 on UltraFlix. Mastered in ‪#‎4K‬ by 4K Studios "A Magic ‪#‎Christmas‬" (2014). ‪#‎FamilyMovieNight‬
Available Dec 23 on Iron Dragon TV on ‪#‎Roku‬ and mastered in 4K by 4K Studios on UltraFlix, "Tekken: Kazuya's Revenge" (AKA "A Man Called X"
Available Dec 23 on UltraFlix Fully restored & remastered in ‪#‎4K‬ -- "The Good, the Bad and the Ugly" ‪#‎ClintEastwood‬ ‪#‎Classic‬!

The strange thing is nobody knew they were coming to Ultraflix, so why announce a release date and then not deliver, especialy during the holydays !
Non of these are available yet, not even “A Magic Christmas” for crying out loud.
Too late for that one now.