I dilated that quickly, and yes, no epidural.
With DC1, I pushed for about two hours, with just some gas & air. Hard, but not horrific for me. Midwife swapped in and out of room, seeing other people and coming back to me every so often. Luckily I didn't need forceps, or episiotomy. Though I did have a 2nd degree tear, so needed stitches.
Placenta just slipped out without me really noticing. However, had much more trouble with placenta with DC3 (and midwife had to manually remove it) which I found more disturbing than the actual birth, strangely.
I considered all three of my births to be really good experiences, and was pleased I didn't need/have epidurals.
If it offers your friend any comfort, I dilated just as quickly with DC2, but my two hours pushing went down to just 7 minutes the second time round! The midwife only just made it into the room for the head appearing, apparently.
Was it the lack of pain relief that your friend struggled with? I can understand that being upsetting if she had planned on having it. I would recommend her having a doula (see Doula UK website) next time if she wants someone constantly with her. I had one and she was brilliant.