Achievement First Teacher In Resident interview questions

I applied online, did two phone interviews then finally went to NY for demo lesson. The lesson was engaging ( I believe), but I’m not an actual teacher and I only had 15 mins to give a demo. Many resident teacher programs approach hiring new teachers this way, but it never makes sense to me. You have 15 mins to teach a “demo lesson” to about 15 kids on a topic that they may or may not have background knowledge about and they test you to see how you respond to their behaviors etc. I mean I GUESS..but there are better teaching programs that will pay for your education entirely and will properly train you to teach while you work full-time. The interview process was overall OK (because they moved pretty quickly, about 6 weeks, to interview and to let me know whether they wanted me or not)