Why was Simeon not mentioned in Deuteronomy Chapter 33?

Genesis 49 records, "Simeon and Levi are brethren; instruments of cruelty are in their habitations. O my soul, come not you into their secret; unto their assembly, mine honor, be not you united: for in their anger they slew a man, and in their self-will they digged down a wall. Cursed be their anger, for it was fierce; and their wrath, for it was cruel: I will divide them in Jacob, and scatter them in Israel" (vs. 5-7). These scriptures are in reference to their actions in Genesis 34:25-29.

Joshua 19:1 explains that as a result, the Simeonites did, in fact, intermingle with the "inheritance of the children of Judah." The Levites were also mixed with the other tribes, and dwelt in the cities (Josh. 14:3-4).

These Scriptures record how Jacob's Words were fulfilled-the tribe Simeon was divided and scattered among the other tribes! Although they were not cursed, they missed out on the same blessing the others had received.