> strategic / economic point of view?
This is very much what you want from a BUSINESS lawyer. And what the author apparently didn't understand. You, your business, the other guys ideally - nobody in here should be there for ticking boxes and the exact details of the law. What you are sorting out with a business lawyer is business issues, which need to be resolved in pragmatic business terms. It's not a legal puzzle but a business puzzle.
Same thing from the point of view of writing a contract, or writing or answering a demand letter: The point is to solve a business problem - not satisfy some ideal of the law. And the business lawyers you want do understand this and can be amazing at finding the right terms and shortcuts and at helping you come to an understanding of what matters and doesn't. And yes, these lawyers very much exist.
People often argue that it's a lawyer's job to point out and try to protect you against anything that could possibly go wrong - with the result that indeed it's impossible to run a business. No, that's not the job.
But it takes time to find a great business lawyer, so this should be part of the tasks right from the beginning when founding a business. That lawyer won't cost all that much initially - and they will already be useful working on contracts.
Same thing for in-house corporate counsel, when you get to that. Some amazing ones who can defuse a situation in an instant - and others who spend their life making things impossible.
Now, it might get to the point where the business lawyer helps you understand that all alternatives have been explored and it's time to spend serious money on courtroom litigation specialists - but hopefully that's only seldom.