I'd say it's a quite important lesson in UI/UX design, and interfaces generally. As per the article, our brains are primed to:
> actively constructs event boundaries based on internal priorities rather than passively responding to environmental cues
Explains why ads effectivity is low, why a lot of users miss obvious cues, and why UI design is so hard. It's something a lot of professionals know intuitively and through anecdotal evidence.
It is quite interesting to see research dig deeper into it, and possibly research/develop better "levers" to pull human attention more efficiently - essentially make us remember things. Priming was long understood to help, and that's primarily from observation/empiricism. Deeper insights into how the brain itself handles this could be game changers.