Thought Industries JavaScript Applications Developer interview questions

Initial phone call with the recruiter, and then a phone call with lead developer, and finally a take-home code challenge of SpaceX launches: 2 bugs, 2 frontend tasks (React) and 1 backend task (GraphQL) for SpaceX GraphQL API. Heard from the recruiter about their pursing other candidates in the following day after I completed the take-home code challenge. I asked any feedback in the email, but no feedback was provided. Very unprofessional! I felt like they just wanted candidates to solve some technical issues they encounter in the codebase without paying for our work! Stay away if they ask you to do the code challenge!