That's just ignorance. It irritates me when a person complains about social media and its data farming, but the person doesn't bother to change some of the settings a website/app has in order to diminish the collecting data activity.
In general, I am frustrated when the complaint is about how hard a thing is to do, when sticking that complaint into a web search gives you an easy answer. That doesn't seem to be the case here though?
Perhaps you should also consider that that FB intentionally buries these pages in their site with the specific intent of making it hard to find for users. And even for users who actually find the page, the weaselly language used there gives no indication if the action you're about to take is permanent. There is always some clause that allows FB to retain the data, for "quality assurance" or "data security" purposes.
People who complain about global warming still eat meat, people who complain about right-to-repair still give Apple hundreds of dollars a year, and people who complain about working conditions in third-world countries don't research every product they purchase.
If I got irritated at everyone who complains about something but does little to remedy the problem I'd be a seething ball of rage 24/7. There isn't enough time in the day for people to make informed decisions about everything they do, the world is far too complex for that nowadays.
I bet if we talked long enough I'd find something you complain about which you could easily remedy but haven't. Similarly, I'm a hypocrite too. We all are.