i would'nt think so either as dry as its been there
That's where you make the mistake, flukes are always a big problem in a drought especially when ponds start drying up, effectively increasing the always present concentration of flukes because of less water volume.
The symptoms also don't always show themselves immediately, but when the cow get stressed the will really wear her down. The symptoms usually show themselves at the change of seasons, often shortly after the calves have been weaned.
I'm not saying it is flukes, but the owner need to try and identify the cause of the poor condition and rectify it if possible, if not possible he's better off without her.