> "I would like to know what kind of response I could expect..." - This is also established from the beginning: you can expect either a "Looks good, let's do some interviews" or a "Sorry, not interested," based on the code you submit. They can't narrow down the choices prior to your submission, because they're grading your submission, not your proposal document with an extensive list of details that they already told you they're mostly ambivalent to.
Absolutely spot on, and you ID it later with "Main character syndrome", but it is so very clear from this post's tone & content that OP expected a symmetric outlay of effort & focus from the company's side. They thought they were the main character.
That's a fundamental misunderstanding that seems to have predicated a lot of their ultimate response: they feel as if they were entitled to much more effort from the company than they received. Such is often the case with strong entitlement, it's nearly impossible for the person suffering it to see it.
