I am in no way comparing Trump to Lincoln - that would be ridiculous. But let’s remember the famous Gettysburg Address story and the poor fellow who made the two hour speech.
And, I point out for those who don't remember around here that all the intellectual wags praised that two hour speech and decried the poor showing of our President. Of course it did not take long before folks realised that the Gettysburg address is the height of poetic expression, a composition that rivals anything written by Shakespeare or Keats, while the two hour speech is only remembered because of the poorness of the performance.
Trump's letter, of course is not poetic, but then it's purpose is not avowedly funerary, well, maybe it is.