Question about sewing pocket lining on Everyday skirt

Hi, I am not very far along on the Everyday Skirt and have a question - I am sewing the pocket lining to the front panel and it says to pivot but at the point the circle indicates pivoting, it looks like the sewing stops. Should the sewing along the pocket lining go to the edge of the fabric or end slightly after the circle? I was not going to do a muslin, but if I do (reading comments makes it sound somewhat important), are there steps I can skip to get a sense of the fit or do I have to sew pretty much all of it other than the hem? Thank you!