Because you've put so much emphasis on this stat and imbued it with value without justification, so it makes it very easy to refute (also, the refutation of your central claim isn't a nitpick - this one is)

And you're doing it in this comment again. No, it's not impressive without some actual knowledge on what the changes are about their value. It may very well be that people are heavily pushed to make changes for the sake of making changes, and most of them are not that useful. Or it may be that, as is common with overworked people, they make a lot of mistakes that require further changes to correct them (ok, not the types of mistakes that affect reliability stat much, but then that's not the only category). Or they experiment way too much with those experiments leading nowhere, so it's just wasted effort. Or...

The daily goal is just as artificial. There should be little impediments to implement valuable changes, not to do something daily