It seems to me that the Bride is mis-directing her anger to you OP when it should be the MoH - or quite frankly herself.
I deliberately didn't let anyone arrange my hen do's (yes I had 2 but will explain) because I wanted to make sure they didn't get out of control.
We all went to a day spa followed by an evening in a lovely local restaurant with "everyone". No need for major travel and accommodation. Meal in a private dining room so we didn't annoy other patrons of the restaurant by being noisy and then a weeks skiing in France.
On the skiing I paid for my MoH to go (didn't make that public) and just told everyone else that she and I were going skiing and anyone was welcome to join or not if they wanted (along with dates/prices) but I appreciated it was a) very expensive and b) skiing isn't everyone's "thing"' c) people couldn't necessarily spend the time off work. In other words it was totally voluntary and whilst I'd very much welcome others coming I had no expectation that they would (in the end 4 of us went).
It just seems that hen do's get out of control. Yes it's a big thing for the bride, but not really for everyone else. Bankrupting your friends isn't a nice way to celebrate your wedding.
DH has been invited to stag dos costing thousands (think vegas type events). Whilst we are fortunate to be able to afford it, the truth is he didn't want to spend money going to a place he didn't like and losing a weeks holiday in the process.
I think you are right to wash your hands of it OP. It's really sad to have lost a friendship over but it's really the brides fault not yours.
She really should have taken up your offer to "start again" with the planning and arrange something that people could/wanted/were able to attend.