Cant set a reminder? Really? - DirecTV

After reading a past post i saw they said setting a reminder on a DVR "Isnt possible and probably never will be" but I dont understand why that would be the case. Ive had Cox, Brighthouse in Florida (before and after Spectrum), Spectrum in Montana, and Time Warner. All of their DVRs offer a reminder setting but yalls probably "NEVER WILL"?

This question, "Cant set a reminder? Really?," is about DirecTV channels, programming, equipment, and sports.