This is old news.
I don’t see that mentioned anywhere, but if it does mention it elsewhere then it most likely means don’t blindly update with this update, be sure to to als do the manual interventions as well because skipping those will cause problems for your system.
I see where it’s from now, it’s from here.
So in that context it’s meant as the person who posted it to be aware of having to a manual intervention as stated by the Arch Linux news feed. So “Update with Care!” was not said by the Arch Linux news feed but by an EndeavourOS forum moderator.