see why being a vet would be more preferential than any other person's qualifications. Having extra help would be beneficial, especially in curriculums that have large class sizes but teaching requires significant education and preparation skills. This move smacks of attempting to devaluate teacher educational qualifications. Remove the "vet" preference and open up opportunities for others in aide type positions. That experience could perhaps count towards teaching degrees down the line if the person wants to complete that curriculum.
If someone is going to remove my appendix, I want an appropriately educated person to do the job. The same applies to people molding the minds of the next generation.
Personal observation: I have been married twice. Both were teachers, educators and had masters degrees. One of my daughters is a teacher. Her husband is a teacher. Teaching is a tough job and not everyone is suited for it. Being a vet has absolutely nothing to do with the person's ability to be a teacher. It is neither a plus or a minus really.