Perhaps this confusion is because of your lack of understandiong of sports governing bodies. It is not only cricket, no sport is regulated by UN. Infact most of the sporting events are governed by individual sporting bodies which don’t like interference by any government. So let us get that out of the way.
Same way BCCI is an independent entity which request govenment for security of events. Now it is upto the Indian government or respective governemnts to provide security as they deem fit. If the event is of international nature where teams representing countries are taking part, then the government does / has to provide security. But IPL is an event where “local teams” are playing … so if Afridi and co want to take part in the event, it will be the responsibilty of the respective clubs to provide security.
This issue was not handled properly by IPL and that is why there has been a lot of “heat” even in India. But to say that somehow there is a conspiracy is far fetched.