This was completely expected, and to be honest, it's an alright thing for the Nebraska Cornhuskers
Thomas, who is the 56th best Running Back in the country this cycle according to 247sports, is the 151st best player in the state of Texas.
Many people stated that Thomas, when he was offered by Nebraska, didn't really have a committable offer when he pulled the trigger back around Memorial Day. If you had noticed, no one in the Nebraska Football offices used their tweets welcoming Thomas, like they have with any other recruit under the Mike Riley era.
The Mustangs, who are closer to Van (located near Seven Points, Southeast of the Dallas-Fort Worth metro area), offered Thomas back on September 21st.
It's a better fit for both Nebraska and Thomas. In the interview I did with him back in June at Jim Harbaugh's satellite camp, his Uncle made a point of wanting Thomas to be closer to home. Plus, with the verbal of Tre Bryant, Nebraska may have another spot for another RB, although it's not solid if they do take another one.
I won't wish Thomas bad, and neither should you. It's the best for both parties. Wish the man well and cheer him on for the Mustangs.