Of course, we don't know the reasons why the Minister refused to appear for this study. Perhaps his schedule was too full.
With that said, I support Mr. Collins' proposal. Although this study was extended, it is coming to an end, and that will mean we can start our next study. I don't have the Minister's schedule, but perhaps he will be able to free up time for this other study. If that is the case, we could ask him questions about either subject, and kill two birds with one stone.