Are there any contemporary chroniclers or later historians who comment on the event beyond merely reporting its occurrence?

Would this likely be seen as a horrific act to be condemned or just the ruthless punishment of a family of rebels and that by her father's treason the baby would be deemed fair game?

In addition would the public nature of it as opposed to a Princes in the Tower style "mysterious death" and the use of a cross to do it be likely to receive a strong religious backlash?

My only source for it occurring is Neil Oliver's History of Scotland tv series and he doesn't dwell much on it.