Yes, it's understandable; however, I think that it sounds like even though they are not required to adhere to the CT as seminarians, it does make it difficult to move towards ordination if one still doesn't adhere to it once tonsured.
You also have to think about the practicality of Bishop Sanborn ordaining a totalist priest, where would +Sanborn send that priest? When Bishop Sanborn still had a good relationship with Bishop Dolan and SGG, he was more than happy to send totalist priests to SGG, but now SGG doesn't send their seminarians to MHT.