I think she is stressing the pattern/precut combo first and I think she just sews together to show us how the cuts should look. My thought is she figures if you are watching her demo you know that the seam should be straight...and I often think if I had to sew a seam standing up( as in the earlier shows) my seams would be a heck of a lot worse...I see that since she now has a BL she sits and sews. Whichever, I still enjoy watching her demos......I have done a few of her ideas....not with precuts ..just using what I have on hand...