Pictorial representations Lincoln’s deathbed

[RJNorton]

On p. 114 of Bloody Crimes: The Chase for Jefferson Davis and the Death Pageant for Lincoln's Corpse author James Swanson is critical of Mary and Robert for not going to the White House during the night to comfort Tad. He writes that it was only a five minute carriage ride. Mr. Swanson is also critical of Robert and Mary for not having Tad brought from the White House to be at his father's deathbed.

I am curious how folks feel about this - should Tad have been brought to the Petersen House to be with his dying father?