The Noam Megadim writes that the travels of Bnei Yisrael in the desert parallel all Jewish history. Indeed, the Ramban writes that the names of these places don't reveal to us their essence. Meaning, every name in the Torah is a description of the person or place. Somehow these names are different. They're a cloak.
Exile is a test.
A tikun - reparation. We need to make the correct choices now to make tikun for poor choices of the past. If we knew what each name was about then we would know the essence of that place and our exile is no longer a test. No test, no tikun. With the destruction of the 2nd Beis haMikdash began the exile bearing the yoke of Edom, that which we suffer from till this day.