From their perspective, they have hundreds of candidates and need to quickly filter a bunch out. So, having low-technical knowledge recruiters ask questions and

From their perspective, they have hundreds of candidates and need to quickly filter a bunch out. So, having low-technical knowledge recruiters ask questions and look for a standard set of answers is the way they do it. There is no room for technical discussion during this phase, no room for nuance. I'm not saying this is a good process or that it's fair, but it is the reality right now. You still get OK results and it's far faster and cheaper.