Hedja:
the better the quality of the game the more interesting it is for the commentators
That's true, but you miss the point, because it's not most important for it to be fun for commentators, but for viewers. And as it is meant to help people improve (especially the below average), then repeating the same advise each week is inevitable to some extent...
MR. Jaberwochy - Your idea is not possible with what limited tools warlight gives the host. But it sort of is the same to hosting two tournaments which was proposed by Gui. And i agree it would be good in terms of teaching basic gameplay based on one tournament, with separate stream, and teaching advanced to expert gameplay based on another tournament, but as mythonian said - it would require another host of the stream.
ps - skipping the picking stage is not a bad idea provided that picking strategies and how picks work will be covered in other games, since as many agree this is for many games the most important factor..