Yea that last sentence of second note is weird. I see no problem with the first one though. If a child node succeds it must force parent to succed to be effective.
The problem is the use of “fails out”, which seems to be here used to mean “stops trying the next child” instead of “reports failure to its parent node”.
Epic should just use the explanations in the forum thread that first introduced BTs:
"a Sequence Node will only go on to the next child if the previous one returned a success. The sequence node itself will only return a success if all of it’s children return a success.
The Selector node is similiar in that it evaluates it’s children from left to right, but it will only try the next one if the previous failed. It will try each chlid in turn seeing if it returns a success. On the first success it finds, it stops evaluating the children and returns a success."
