Big Pharma Dan Destroys Vic Education, page-7

There is nothing to say how many, if any of the 0.8% planned to continue to work as a teacher in the first place, the number is well withing the number that retire, or leave the profession each year.

0.8% isn't very significant, nor is it representative of how many will be directly affected by the three shot requirement.

I would be more surprised if they got 100% compliance.