The phrase "myopic focus" means being too focused on a specific thing or goal without considering the bigger picture or possible consequences. Full definition
There's even a whole sub-category specifically about sex: The Act of Marriage, Intended for Pleasure, Celebration in the Bedroom... Many of these types of books have an almost myopic focus on a woman's obligation to have sex with her husband. (relevantmagazine.com)
What James Franco is showing in «The Disaster Artist» is not so much that Wiseau was a misguided filmmaker, but that sometimes an individual's myopic focus in being true to only himself may not reward you with the outcome you expect. (reelbob.com)
One could reasonably argue there were TOO MANY publishers at the Bookfair when you think about the relatively small markets they cater to for literary fiction, poetry, and creative nonfiction, as well as the often myopic focus on a single magazine, ignoring or discounting other ways they could serve their community while ensuring a sustainable future. (loudpoet.com)