That didn't seem to be the case for me.
http://www.onemanga.com/Mx0/88/04/
Here Kuzumi says "If you hadn't forced me to join, even if I'd passed the exam, my points would probably not be enough."
That sentence doesn't seem to make out that Kuzumi had a lot of points, rather, he had just enough to manage. Even though you earn points from the executive committee, I doubt its on the same scale as earning points from magical test. Why? Because it would be unfair to other if one where able to earn 'lots' of points from just begin a member of Executive committee. And at point, Kuzumi was totally unable to earn points on magical test since he had zero magic. So to say, he just managed on what he got from the executive, but no more than that.
Also, "he had the luxury to use M0 in the test because he had a lot of it." It was not about begin luxary or not. Kuzumi knew he didn't have much points, however, he was willingely to sacrifice what he had to clear the test and get BM0. May I refer you to
http://www.onemanga.com/Mx0/92/08/ and
http://www.onemanga.com/Mx0/92/09/.
He was pretty concerned wheter his points would be enough or not to reach the top. Well, thats my beliefs for this matter anyways.