Uh, no. That was their PR line they spewed 10 years ago after they went all Paul Bunyon on the trees.
It was because of Wishes. Everyone was trying to cram into a small area to see the show.... so they cut down the trees. Keep in mind this was 2003/4/5 crowd levels, which was averaging high 30s / low 40s a day versus the 50s they're getting on a daily average now. I cannot imagine trying to cram today's crowds into that small area to see Wishes, letalone the castle lighting last christmas.
That being said, I miss the trees. I miss the shade.