This is not about Christians and their marriages. Because this guy is one of the Charismatic, Pentecostal heretic crowd and is writing about that cult and its problems. Too many people in this world can't identify what the real Christian life is nor who the real Christian Remnant are.
These Charismatic/Pentecostal people are no more Christian than Roman Catholics or Jehovah's Witnesses.
The reason they have problems with wife-beating is because they remain under the dominion of sin and Satan.
"When the Charismatic movement is analyzed doctrinally, ethically and historically and their â€śsupernatural giftsâ€ť are examined empirically, it is revealed as a gigantic fraud and a great force for declension in evangelical Protestantism. The Charismatic movement is not a genuine revival but rather is a man-invented, man-centered, man-generated movement" Brian Schwertley