How true.
In regards to 1919, the way I understand it is that there were those in our church leadership who wanted this information known, but others had been rejecting this information and blinding their eyes to it and attacking those who were pushing the issues, leading to the 1922 General Conference.
But for example, Stephen Haskell was a very close friend of Mrs. White. However you find that they were in major disagreement in how inspiration worked. Haskell being a fundamentalist, and Mrs. White bringing up the same issues later brought up in 1919. Both were frustrated that they could not convince the other of their view, yet remained cordial towards each other. Sadly, after Mrs. White died, Haskell had the same conversation with Willie, with Willie saying the same things that his mom told to Haskell, but Haskell was not as cordial to Willie. Haskell strongly believed his understanding of how inspiration worked, including trying to teach Mrs. White how God was using her and rejecting what she was saying about how inspiration worked.
Same with others, there was not so much a shutting up to protect their jobs (I'm sure there was some) but there was also strong ideas who did not believe the evidence.