No, you can not blame EXJW's for that statement, and the 4 members of this family didn't say it either.
It was your governing body, the president of your Watchtower Society that said that.
as well as upon the Egyptians; which means that in
order for a professed Christian to be pleasing and acceptable
to the Lord such must be separate from the
world and clean; hence the cleansing of God’s sanctuary
is involved and includes the removing of the
“elective elders” as parasites, and which must take
place before God’s organization is entirely clean."
See last paragraph.
https://docdro.id/7LD8QyF
Petra!