This article appeared to me to have all the earmarks of propaganda.
So I looked up the Trumpet on their “About” page and low and behold it’s tied to the cult founded by Herbert Armstrong known as the Worldwide Church of God .
So I say, consider the source.
The worldwide is under new ownership. They reverted to main stream Sunday worship and abandoned the Biblical Holy days in favor of the more popular religious holidays. I don’t think you have anything to fear from them.
The Armstrongites are indeed a poison. There are a few of the fiends on FR.