Do you mean by ex jw, a disfellowshipped/da?
Is this guy making a lot of mistakes?
Most people have no clue what JW's believe and practice.
I haven't watched the video because it is long. But as far as what's being said here, "cult" has taken on a modern meaning. What is narrowly defined as a "dangerous mind-control cult" is generally accepted for just the word "cult" today, but it did have the meaning of just an offshoot religion, which every single religion today is. It morphed into small offshoot religions and then to weird religions with various denominations being "sects." It isn't wrong.
Also, as far as laymen are concerned, the calling of the 144K did stop in 1935 when they started the "great crowd" teaching. And as far as laymen and many JW's are concerned, they do shun ex-JW's.