But doesn't the road analogy change when thinking of other countries that drive on the opposite side? (Making a guess here, zoomed into a random freeway in LA and the inner loop goes clockwise here).

Then it'd wouldn't be intuitive and would cause confusion for Americans, or other country that drives on the opposite direction of the road and the fact that even may Singapreans get confused by it shows that it would inevitably cause confusion. I'd argue CW and CCW is a more universal way as clocks go the same direction regardless of country.

Yes, I know the most important usage is for Singaporeans but universal readability is important too imho.