Most programs that are not direct path IR have what they call ESIR that you would apply for at the end of your first or second year of DR training and based on availability of spots and how many in your class want esir and how competitive you are compared to them you may/may not get an esir spot. What Baylor does is simple make that decision before your even excepted to the program. You will still have to do another year somewhere else after Baylor to complete your IR training. Why do they do it? Who know but the PD, I think there thought by doing IR training at multiple institutions you will get more diversity of training, sounds great in theory I’m not sure if in practice it actually will make a difference and may even be a detriment to some who are accepted to the program.