An experienced professional software engineer on an industry standard salary, having been provided with nonsensical or missing requirements, should know when to impute and when to raise an exception. I'm not at all confident that a $9/hr engineer will do that.
So purely on the power differential, a $9 engineer wouldn't make a stink. Says nothing about their work ethic or ability to see disaster (at least upon integrating code, probably not literal disaster) coming.
And also, how would they have known they're just using one AOA input, and a component above them isn't already delivering a value that's known good - these are not the kind of engineers that'd know that.
You don't hire somebody for a price like that because you intend to listen to their feedback and treat them like a valued member of the team. You hire somebody for a price like that because your LLM hasn't quite reached the level you want yet...or frankly costs more to run.