Well, someone has to say it.........
That forecast wouldn't always be true, and therefore isn't really the same as "At the end of the day, it's night" etc etc etc.
There are plenty of days where there is no fog, and it isn't VFR.
What is described is a day with VFR weather generally, but in places VFR is not possible because of the fog.
How else should this be described? "VFR generally, but not in places"? I think the description actually used provides a little more info.
When you think about it, rather than just reacting, it actually makes a lot of sense.
dp