Knowing what's happening around the world and understanding their implications can help in improving your GP score, but it is how you apply this knowledge to GP that matters most.
Mentioning a significant event that took place and talking about some of its details show the examiner that you have the knowledge and perhaps understanding, but it is how you apply it to the GP question (in a relevant and appropriate manner) that really proves to the examiner that you deserve to ace the GP exam.
