Who are they to judge that you are "too oral?" That's outrageous.
At the college where I interpret, it's up to the student disabilities office counselors to arrange for interpreters. It's not up to VR. I've interpreted for very oral students, some with CI's. If the student felt that he or she needed a classroom terp, he or she got one.
Keep pushing.
BTW, if you're "deaf enough" to be eligible for VR services, then you're "deaf enough" to get a terp (or CART, or FM system, or whatever works for you).