Yeah, Rhea Seehorn is great. Carol is definitely intentionally abrasive (hence all of the other characters' reactions) and the show repeatedly under cuts her methods to make her seem slightly ridiculous, but her extreme stubbornness is what makes her such a good lens for the story.
Personally, I think it's very relatable to be an asshole in a smiling zombie apocalypse.
I haven't interviewed anywhere in nearly a decade, but damn, the human interaction part is so important. These are your potential future coworkers, a vibe check goes both ways.
I don't think I'd even do the first automated interview, tbh. If a human is going to be involved in hiring me down the line, they can damn well be present while I'm answering their questions.