I do not think they are mutually exclusive. The commissioner, if that position is ever created, could be responsible for organizing two official debates among the main party leaders at the time of the election. That would not prevent media organizations from organizing other debates, after negotiating with the political parties.
We must ensure that at least two focal points in the campaign are organized in a transparent way in order to allow for a plurality of partisan views to be expressed. Citizens need that.
As I said earlier, thematic debates are fine, but once again I think it is important for citizens to have this opportunity for comparison and evaluation...