It’s a long time ago, about 15 years worldwide I think, since the move was made to 3 points for a win. I can remember, and it makes sense, that playing for a draw, especially away from home, was more worth it under 2 points for a win.
But managers still steer their teams to do that, of course. – Especially against strong opposition where the chances of winning are low, and the strategy of pack the defence and rely on a goal on the break are still common. Would 4 points for a win make a difference? 🙂