He has CHOSEN to not point out what is so bad in ANY of them; just makes a broad statement with NO evidence to back it up; merely parroting what JS had said so long ago:
"...the Personage who addressed me said that all their creeds were an abomination in his sight..."
Even JS can't say it was GOD that spoke to him!
Assuming that the First Vision really occurred, it is likely a 2 Corinthians 11:14 event.