Oh don’t get me wrong, there is a lot of messed up shit in the Quran. It was written by a dude in the 600s. And while it may have been progressive then in comparison to Christianity, it is still pretty messed up by today’s standards. The views on punishment, slavery, and women fail pretty hard from today’s perspective. I am only saying with regards to divorce.
Your abortion example is interesting because the only spot in the Bible that could related to abortion is actually supportive of it. It is prescribed for a possibly unfaithful woman.
As far as things like this being cultural, you see similar shit with honor killings in backwards areas of India that are by Hindus.