That was fun.
Also, I saw the same things you guys did in the 'assumptions' and while many of the questions could have been worded better don't confuse the wording with a 'desired' outcome. Just because you answer contrary to the wordings 'assumptions' doesn't mean your input isn't valuable. Such wordings often bias early study results, that's one of the reasons they like to conduct additional interviews when they can, to help determine what they need to fix (or statistically weed out if they can't) in the study.
That said, I too think its target range is former christian atheists in the US who 'deconverted' in or near adulthood, whether you or your family were all that 'into' it or not.