i think the important takeaway from that post is that if you want to beat storm, make his early game hell which you are best equipped to do as a support. pre 6, he has no escape, so buy a smoke and gank him mid. very few storms in pubs will see that coming. then, when he gets back to lane, kill him again. make it your focus to ensure that your midlaner has levels and farm on storm and then, when he hits 6, he will be so desperate for xp and gold from kills, play safe, never be alone and always be in a position to help someone who is vulnerable to a storm gank.
itemizing against a snowballing storm as a poor support is incredibly difficult, so have the maximum impact that you can when you are most relevant.