Oof! I've read that the tinsel can slice up a cat's intestines, so that cat you cited dodged a bullet.
We haven't had a tree in our house for 20 years, for a few reasons: (1) space, as in what furniture do we have to store in order to have floor space for a tree; (2) cats, who also like to chew on needles and drink tree water; and (3) we're never home on the 24th/25th, so why not enjoy the trees at our holiday destinations.
When we did have a tree, it was always real. We didn't want to contend with the storage space for a fake.