I was at a birth a few months ago which ended in a PPH with about 1.6l lost, so not a small amount. It was an induction with synto and epidural given at 40+4. Once the emergency was over, the midwife said to me 'lucky this didn't happen at home!'. Oh, the irony! I would have laughed in her face if it was not for the poor woman trussed up with a blood transfusion in the background.
Jakana, HB midwives are quite capable of dealing with those sort of situations in the home, with transfer to a hosp, if necessary. It's up to you to decide how far you are happy to travel in an emergency situation. I think that is the beauty of homebirth. It's up to the individual to own and be accountable for what happens during the pregnancy and birth, and I think that's what makes homebirth a much more satisfying and empowering experience.