agreed, and complicated by cross cultural norms (I'm Australian), (style of) sense of humour, and perhaps a tincture of cross "generational" too
I needed to ask because (I'm in education) I find that 90% of the time people don't read carefully (especially students, which to me on this you are), I need to ask because I don't like to assume. I've found that when someone doesn't ask anything about what you said it was either clear and simple (which this subject isn't) or its because they glanced at it and didn't get it and moved on.
If a student (in my experience) asks a question, gets an answer then asks the same question it often indicates that they didn't understand the answers given (which would usually be indicated by a specific question about the answer). That didn't happen which left me in the dark, which is why I asked.
This is a complex subject and you've got a short time to cram it in so I'm doing what I can to try to steer you towards what I've come to see as the key points to answer your specific questions.
That these questions are asked before is normal, that I've "said something previously" simply means that. It wasn't intended to chide you (note I've assumed something from "your tone" here and that may be wrong).
Lastly I don't know what your expectations are or how to communicate. As you may guess (even by this) I'm actually making an effort to try to help you to grapple with and understand the question you've asked and the answers you've got and who may be answering the questions. We've got hundreds of active members here and so far there is about 16 posts on this thread. So of those who are here I'm making an effort to try to guide you on your path to informing your "informed choice".
Sorry if that's not helpful