Red flag?

I am a student in my second semester of RN school and have been considering getting a tech job PRN. I applied around and haven't heard back (contrary to people telling me I'd get hired quickly as a student) from any community hospitals in my area. I saw that one of the major general hospitals in my state a couple cities over was hiring and I applied. I was caught off guard when I got a phone call from them within minutes of applying. They were accepting applications for everything from ED to CVICU to L&D and I applied to all of them. When I showed up for my interview I signed a background disclosure form and was immediately taken to medsurg to meet with the managing team for the unit. I felt a very bad vibe and the nurses looked at me with pity. They asked me basic questions about my school and what skills I have been practicing and the patient populations I have dealt with. The main unit manager seemed to have a bad attitude and didn't ask me any questions and just observed me. Everyone had the energy of "Here we go again another tech that's going to quit." I left and thought they wouldnt call me for a follow up but they just now emailed me some paperwork and attempted to call me but I was in class. I understand medsurg is hard and that doesn't deter me, just the energy from everyone on the unit really rubbed me the wrong way. Should I follow up to the email and continue with the hiring process so I can gain experience or should I trust my gut and just tell them thanks but I need to focus on school full time. I know nursing is of course a very emotionally draining and hard field to work in so I don't expect sunshine and rainbows but the looks I was being given really told Me I should think very long and hard about this. Especially since they were so quick to try to hire me.