The argument is what negligence - if the organisers put spectators at risk then probably. Had she been hit right up by the tee then maybe the organisers need to prove they had taken steps to ensure a spectator wasn't hit by a miss-hit ball. if she was 250-300 yards away then there is quite a lot...
1 - I think she is from overseas from when I read about this yesterday, did she not get travel insurance
2 - The match ticket should give a warning of balls, bit like football tickets do (or at least I think they do)
3 - The organisers should have notices in place to beware golf balls
4 -...