Well, check page 15 in the EG7. you can find EG7 by following the link in my signature.
There is something in the immigration procedure called Lock-in date. It's the date that VO uses to freeze certain factors that impact applicants pass mark like age.
For your case, I would rather consider 3 points instead of 0 to your spouse as she finished a year in education at the lock-in date, which also 3 but not 4.
Anyway, you are doing the good thing by sending updates to your VO on your spouse education, and let's hope that they consider the extra points.
Cheers
Mezo