It's kinda applicable in a philosophical sense, obviously not in a literal sense. There is a lot of discussion of logistics in the book FYI.

> If it was applicable to modern war, it would talk about logistics and technology, whereas it talks about merely tactics.

This is simply factually false; chapter 2 of tAoW is nearly entirely about strategy at a level which subsumes logistics, logistics itself, and economic considerations of conduct of war and their impacts on logistic concerns.

The work says more about tactics, but that seems to be not because tactics are viewed as more important but because they are viewed as more amenable to detailed generic advice; the higher level rules are simpler to describe (but not necessarily to execute on effectively.)

Um, Art of War does indeed cover the importance of logistics and supply. And espionage (from using deception to spies to scouting). And morale (both yours and the enemies). And many other factors. Tech not so much because armies don't generally develop new tech in the field.