"The developer is oblivious to his games mistakes" is so true haha, been there myself so many times.
But the Morse code thing, it's hard for me to pin down because I'm not sure why it is so hard for me to like listen to it, I've figured it's because it's hard for me to differentiated between short noise (dots) and long noise (dashes) especially when they kinda just come on loop with short or even no pause in between, something about me being absolutely tone deaf and rhythmless. And again this, is purely like me-issue, this all means that I just need to take like longer on everything, but for me visual ques help a lot (forgive me if I missed them being there, I admit, panic also affected my skills here lol).
Also the notes, I also would like to think players do that, I mind myself like that, but alas, it seems I've also fallen for the old "there is no pen and paper near me, time to give up". Which is sad we have forgotten the art of note taking, BUT also I do really like games which give you the ability to write notes yourself. Fun to doodle in games haha!