I agree.
I don't think it's fair to have PRP that is based so much on the behaviour of other people and not in your control. I'd possibly agree that targets such as running a club etc could be rewarded, but again that's the teacher's effort, not the performance of how it turns out/attendance.
it's not that I object to the fact of teacher's being measured, exactly, but more that I don't think it is ultimately good for the pupils. I think it leads to a huge emphasis on exams and marks, so that lessons become nothing but preparing for exams and learning exactly what's on the syllabus and exactly how the mark scheme works, rather than a broader education. Everyone ends up stressed and under pressure, and it leads to all sorts of game playing about which exams to enter pupils for to gain the maximum marks for the school, etc, rather than what might be best for a student's education more generally. Clubs that are measured on % of pupils attending might end up becoming populist, and leaving no room for more niche subjects that might be very enriching, but not so superficially exciting and attractive. Schools end up being compared on too many measured in league tables, which again leads to games-playing with data of all sorts, trying to get the right statistics in any way possible, and this then leads to all sort of problems with admissions, catchments, popular schools, and so forth.
In short, I think you can't treat education in such a quantitative way, and that doing so is part of a much bigger picture of what is wrong; we need to change what we value about education.
Of course it is difficult, because there are good teacher and bad ones, and ones that will put no effort in if not incentivised in some way, and it is hard to know how to do that when what defines 'good' is so nebulous. But I think what is needed is a cultural shift generally, that values teaching, teachers, education in a broad sense, rather than just more pressure for result defined in very specific, quantitative ways.