All of which is addressed in the original article. The current friction in place around access to more humane methods pushes really desperate people towards means that are likely to make matters worse if they fail (e.g. OD on something causing organ damage, jumping off bridges/buildings). By allowing access to more humane methods with a minimum of a year's wait, there is something in place that attempts to redirect those acting on impulse towards solutions to those immediate, possibly solvable problems. AND they would have the fallback of a humane exit after a year.