If I would have to guess, I'd say that the change isn't constant - it's as if Earth's axis was waning back and forth, away from the previously "normal" position and back. Also, if the change isn't really significant, it may not be noted that easily.

There were news (even in MSM) that the sun rose a day too early somewhere north of the arctic circle a year ago or so already. Now that's a huge thing, and the native people of the North did notice that. Then the news just got buried as if nothing had happened - just as we've seen happening so many times with many other news that don't fit the old paradigm.