All other considerations aside, for a man to do anything that would result in a person’s death (in this case, involving a woman in premarital sex) must be a grave offence. Moreover, under Old Testament law, what applies to one gender can be assumed to apply with equal force to the other gender. For an example in the opposite direction, the Ten Commandments says “You shall not covet your neighbor’s wife” and makes no mention of it being wrong for a woman to covet her neighbor’s husband (Exodus 20:17). On the surface, this might seem a double standard favoring women. In reality, the opposite gender equivalent must be assumed to be equally wrong.
The Bible does not attempt an exhaustive list of every possibility. It frequently gives just a few examples of sin and of righteousness, expecting us, under God’s guidance, to appropriately apply and adapt these guidelines to different scenarios.
Anyone coming to the Bible with a view to find loopholes to excuse their sin, is not worthy of Jesus.