Houses are manufactured, not built.
Like cars and other consumer products, they are designed to minimize assembly time (and costs) with no concern for the difficulty of later repairs or maintenance. That’s why it can cost you hundreds to replace a two dollar part in a car.
In other words, glues are cheaper than screws.
I used a putty knife to open a gap to insert the claws of a claw hammer and it popped off. There is some damage to the drywall and I'm going to have to scrape some adhesive off but Texture-In-A-Can should fix it up.
Thanks for the response. Why anybody would put one of those things up in the first place, is a mystery. Nostalgia, I guess.