You bring up an interesting observation that I also noticed as a general vibe on the mothering forums. Everyone seems into a lot of one-upmanship. The magazine letters and other alternative moms you met in the print community never ever had that vibe. I was a subscriber since I first got pregnant in 1985 until recent years. And a hippie with excellent alternative credentials, LOL.
Seems these days everyone dilutes or reclaims what birthing is about to fit what makes them comfortable or to stroke their ego. Look what happened to the word "natural birth" it has been hijacked and said by women who had an epidural. "Unassisted birth" does not usually include having friends, or a doula and midwives present, so be it, and let her say what she wants. Though it does eventually change the meaning, like natural birth meaning has changed in our culture.
To me what you describe is not an unassisted birth. We all know that historically it's UNcommon to birth alone and most women prefer to have others around even if the other women sit the corner knitting (exactly what a good homebirth midwife should be doing!) that is not an unassisted birth. To me what you describe is a homebirth with a good midwife and a nice party atmosphere. Sounds like fun.

but not an unassisted birth! Not having prenatal care does not make it an unassisted birth.
And to answer your question I would not be comfortable to see a client again who was dishonest about her intentions about the birth. Let her know she can be honest with you and if you want, you can then take her on for only prenatal care and guidance.
The most well known and alternative way unassisted birth happened is to be alone or maybe have your husband around! I am old enough to remember before the internet when Laura Shanley book came out (she is the most popular of unassisted birth moms) and there was a newsletter for unassisted birth. Now we have the web and everyone jumps on the I'm more alternative and way out there then you nonsense (strangely the mothering forums seem to breed this competitive I'm more alternative then you mind set). Oh well.
;-)
Sorry, this is so long, thanks if you are still reading....
dewi