There may be reasons why it seems right for the sons to draw together now. As pointed out by NUCat320, Maddox was highly-recruited elsewhere but signed with U of H's football program. Anderson's plans may be affected by the recent firing of the Lamar coach (Tic Price) who recruited him, but in any case, Lamar Univ is no more than 100 miles from home.
My guess is that due to family health factors or something similar, it's a good time for the Kopps to be closer together. It's likely that neither Miller nor Anderson seeks a pro career, and we in Cats fandom may just not recognize that some things can be more important than big time hoops, projected playing time, etc. Personal prediction: instead of a power basketball program, Miller may happily wind up at a close-to-home school like Rice, Houston Baptist, or even St Thomas (in Houston, not even a D-1 program).