I think that phrase only meant something for a short period in filmmaking. And that period is long since past. Now the main technical decision is how "shaky" to make the shot.
My point is; most directors aren't technical at all now. They hire people to be technical for them. And most credit should go to the cinematographer and the editor.
I think that is very much debatable.
Infact, i suggest it's the exact opposite. Trades are so easily accessible via the internet, college courses etc, that the term "Director" is as broad a statement as it was forty years ago. Many more "Directors", especially in the latest area have never been so multi-talented. Whether that's a good thing or not, is another debate.
Never have so many people had the opportunity to learn such a plethora of crafts/skills, that inevitably a surge in the "Jack-of-all-trades" has arised. Not so much that they run entire movie-sets on their own, but certainly beyond such decision making as your first quote.
There's much, much, much more understanding in the terms "Director" as there's ever been.
As to your point about the "Credit" going to whom, and the Director not deserving much. May i ask who informs the crew members of the vision to the very last degree? Who spends months, and months researching and constructing that vision to the extent that it's able to be created? Because you must remember that the entire crew has to start from zero. He/She conveys their vision that must comply to their ideal for the material. That is
extremely challenging. Not to mentioned the massive pressure that comes with the title, but to orchestrate a significant number of artists and have them singing from the same hymn sheet, it takes an enormous amount of patience, humanity, and skill.
It's a balancing act, and it deserves just as much credit as any other.