Difficult to comment without knowing the full facts, but it's unlikely that an increase in the complexity of the basic equipment would have saved this poor girl.
I'm not sure how many unexpected deaths there are in the skies each year, but I have seen a recent article suggesting that about 200 lives per year could be saved in the UK per year if we were all proficient in CPR.
I would have thought it prudent to carry some cheap basics on board,- I'm not a first aid expert, but a one way mask/tube, and ?perhaps an assortment of airways would be useful. I'm not sure if this would help the patient that much, but from my experience, cardiac/ and respiratory arrest usually involves the airway becoming obstructed by vomuit/mucous. I'm not sure why rubber gloves are that important.
Of course, you could impact on the 120,000 premature deaths each year, and stop selling cigarettes.