In the upcoming version of HA, there will be a more visible effect of passing on goals scored. There will now be 7 levels of passing which proportionally effect the probability of a goal scored. They are (worst to best):
terrible bad poor (normal) good excellent perfect
Additionally, the dramatic increase in unstoppable goals this season (especially in shooters with 50+ shooting) has been noted.
The rate of unstoppable goals will be tweaked down in the coming season to what will hopefully become a more realistic level.