Heartland Home Foods interview questions

I applied through Indeed. When I arrived it was a group interview setting where they did a powerpoint to explain the position and all it entailed. Then they take you individually back to interview you. They asked me what I did now and how it relates. They also wanted to confirm that I was comfortable with the duties of the role. When I was in the one on one interview I asked what the salary was. They informed me that it was all commission based and at the time, I was appalled because I drove two hours to go to this interview. I think it was insulting that the salary was not communicated over to applicants who are looking to relocate or just anyone really. I think that if they expect and want to ensure candidates are going to feel comfortable with the job duties than they should be transparent about the salary. I did end up getting an offer for the final round of interview however, I was not interested. They also mentioned that there training is paid for and it was two weeks long and they only paid $250 a week. Who can live of this? Especially, someone like myself who was going to relocate for the job.