Sure, absolutely. For exactly the reason you state, advancing after combat may cut off units yet to be attacked.
NaW is also interesting in the aspect that you MUST attack adjacent units. In a lot of games attacking is optional.
It was one of those things that isn't quite noticeable until one actually sits down with the game and tries it out. The order o resolution was such an important part of deciding future conflicts that I was surprised I hadn't seen it written somewhere else. Thanks