I received similar letter as well. They probably feel necessary to remind people that they need to be in good academic standing to be eligible, and this was probably due to a high number of people getting their applications returned earlier precisely because they did not mention good academic standing on their letters (the schools, too, were at fault for sometimes not willing to put it there, or not to make it an option). Another important thing to highlight here is the fact that the PhD stream is just an eligibility criterion, and applicants still need to satisfy the 67 points and the one year continuous work experience requirements. I would, however, wonder about this particular bit which makes it sound as if PER is issued to those that only have for sure satisfied the eligibility, even though we know for sure that they also checked the one-year work experience requirement, and also even the total number of points (due to the number of rejected cases, not because of PhD eligibility criterion, but also because of not having enough points and not having the required continuous one year of work experience). We will see I guess.