But the thing is, if you make a mistake, you DO deserve praise - because it means you're pushing the boundaries in EXACTLY the right way for you to become a confident speaker.
Seriously, ask Catrin how often I give undeserved praise. It just doesn't happen.
In the final analysis, though, you will of course use the materials in whatever way suits you. I'm just trying to share my experience of helping people get there faster and more happily by pointing you in the direction of what works best.