By means of clarification, yes, you're right in the terms of what might be reasonable for people to consider. However, under the terms of the standing orders, Senator O'Sullivan did miss the call for his continuation, which means his contribution has been completed. If he is granted leave to speak further, he would have the opportunity to speak for a full 20 minutes. If Senator O'Sullivan chose to confine his comments to, perhaps, the balance of his previous speech, that would be entirely fitting, but he needs leave in order to do so. And leave has been denied.