Sforno on Numbers 33:2/ספורנו על במדבר ל״ג:ב׳

1ויכתוב משה, he wrote down the name of the places towards which they were setting out, as well as the name of the places from which they had started that particular journey. [this unusual sequence would justify the Torah mentioning first מסעיהם before מוצאיהם at the end of our verse. Ed.]

2The reason why we find sometimes the objective mentioned first and other times the place of departure, is due to the fact that sometimes the people were glad to get away from a certain place where unpleasantness had occurred, whereas other times they were merely glad to arrive at a new destination hoping for a pleasant stay in their new encampment. One of the most vexing aspects of all these journeys was that the new objective had never been announced beforehand, so that the people were always in the dark about what the next day would bring. In spite of all these uncertainties they never refused to follow the cloud and break camp at a moment’s notice when required. The reason that both the breaking of camp and the making of camp are mentioned separately is because both entailed a considerable amount of discomfort.