The core meaning is still a test, and we need to see how Jesus escapes the trap. And that seems to still be the choice for us today. One choice is to set the bar too low. Most sermons on divorce begin by decrying the high divorce rate. Pastors proclaim that divorce is too common.
Divorce is too easy.
As the sermons develop, they conclude that our society has lowered the bar too much. A low bar says divorce is no problem. Make your marriage a trial effort. If it doesn't work, get a divorce and find another partner. While that seems to be the attitude behind the high divorce rate, I'm not so sure there is anybody really taking that position.