@SATSmadness - I am so sorry, it really could have been any of us, and my heart goes out to your DD and to you.
One thing though - you say:
She's in the frame of mind that even if she did re-apply, with her luck, due to likely repeated grade inflation, Uni's won't rank Y14 (TAGs) grades in hand as highly as predicted grades for the Y13s she'll be competing against in the autumn
I really don't think in reality that will be the case. It was pretty clear from this year's round (when originally it was thought it was CAGS from last year versus what were going to be exams this year), that once you get the interviews (and that process at least is transparent, and your DD should be able to ensure those given her skills), in the overwhelming majority of medical schools it seems clear it then comes down to rank at interview. So long as she gets the grades this year, it will then again be a matter of the interview - which of course is one of these one off performance things that is so dicey. I really would recommend the Discord server I posted above as a place to practice . DS said that in one of his practices, for example, he said something he thought was innocuous, and the person doing the interviewing said - "don't ever say that, it makes it sound like you have no empathy" - DS is in fact a very empathic person, but in the heat of the moment it is so easy to come across as someone who isn't, and having people working with you and picking that up and critiquing you (and then you working with them to do the same) it seems to me can be invaluable. DS used the book as well to help, and it was great, but the book won't tell him he comes across as arrogant or non empathatic, or wishy-washy, or whatever might get you marked down at interview. Having an significant supply of different human beings also trying to crack the system is much better for doing that and understanding exactly what your weaknesses are at interview.