Humans aren't naturally monogamous, ergo why infidelity and divorce are so common.
I'd argue true monogamy never existed, but if you want to argue that it did at one point, one thing is for sure, it's dead now. Not only is monogamy dead, but even the illusion of monogamy is dead. Damn near half the zoomers I know are in poly/open relationships. Some of my zoomer coworkers are sleeping with older married women. Some of my female coworkers casually talk about cheating like it's nothing. One of my female coworkers is 29 and married and there's this 18 year old who she's cheated with and EVERYONE knows about it. I could give plenty more examples, but you get the point.
Some out of touch guys look at articles like these and see them as an "attack on muh traditional values". But the reality is their traditional values are GONE. No need to get defensive over them, because there's nothing left to defend.
If you wanted to do something to protect the illusion of monogamy, the time to act was decades ago. And that's if you believe this current predicament was preventable, which I would argue it wasn't. On a long enough timeline, we were always going to revert back to our instincts.
This is the era of 4B, radical feminism, polyamory and onlyfans. We live in their world, not ours.
Ultimately this article and the "cheat pass" it's advocating for are symbolic. Men need not give with wives an infidelity pass as they're already romantically involved with another (younger, better looking) man.