Those are all fair complaints, the tutorial is designed to be as brief as possible to stick to the modern way of not reading manuals 
but yeah, I think we overdid the brevity a bit.
Anoek is on board with some improvements and the tutorial is actually on our github, so any coder is welcome to try and improve it. Just please stay true to the minimalistic idea The idea is to be able to play as soon as humanly possible. For longer explanations there are other sources, possibly we can link to those at the end of the tutorial or something. Anyone willing to help out (@shinuito @KillerDucky), who is not willing or able to code the stuff, just PM me, I will try to do it myself one day, but no promises on the timetable, lately I am having trouble finding extra time
Welcome to the forums @xitoshi and thank you for searching before starting a new thread appreciated.