In fact in many abusive situations the abuse is how the abuser keeps the abusee from exercising their freedom to leave. The relationship being nominally voluntary has nothing to do with whether it is abusive.
I agree in this context, but not in the broader sense. Not giving clear responses to interviewees is unprofessional and shouldn't be tolerated, but "abusive" is a bit much.
You can look at any job and claim it can't be abuse because people can leave the job.
You ignore that leaving the job means loss of income, status, or worse even.