To be clear, it is NOT up to LIJSL, NYCSL, NPL, EDP, ECNL, EIEIO or any other alphabet league to decide when the Laws of the Games are changed. The 2019/2020 changes were made as all changes are made to the LOTG, by the IFAB.
Interesting that you ask about Law 16, the goal kick. It has indeed changed and a minor change at that. Unless it is a quick goal kick taken by the defending team the opposing team must be clear of the penalty area for the kick and the kick no longer has to leave the penalty area before it is touched by another player.
There are several other changes that may bring even more debate and they are more significant.These law changes are currently in effect for the Women’s World Cup and will be in effect for tournaments and then the next fall season.