Earlier quoted context omitted.
That is a good thing. I want to see those changes. Preventing people from seeing the change log of a page because "conspiracy theorists might use it" is dangerous thinking. Saying that it's okay to forego transparency because it could be used to bolster people who disagree with you is backwards. That's precisely why transparency should be retained - when you're the person disagreeing, it benefits you.
Case in point: On Jan 6, NPR published an article with a 10AM headline and timestamp about the upcoming Trump rally. Later in the day, they changed the headline to be something like "Insurgents invade Capital building", but did not change the 10AM timestamp up top. One had to read the article to find the update timestamp. Newsmaxx, and thus many if its viewers looked at the headline and headline timestamp and trumpet…
News websites really need to stop continuously rewriting their articles. It's a PITA if you want to cite them as a source, then all the sudden what you cited isn't there.
I've had NY Times articles get completely rewritten while I read them (admittedly with some long pauses between when I started and finished), and when I went back to quote something, it wasn't there anymore.
I don't think this is nefarious or anything, it's just them trying to adapt to expectations that they'll always be up to date with the latest stuff. You have the same article about some rapidly changing story hanging around their app/website all day (and "most popular articles" facets), and I suppose most people expect those things to be up to date.