"The basic problem with horsemeat is that it has a very low fat content"
You must be American, EB. Only an American would see low-fat as a 'problem' (and it shows!).

I've eaten horsemeat steak on a number of occasions in Belgium. Very nice indeed.
The only burgers I eat are ostrich-burgers, made on a local ostrich farm - red meat similar to beef in taste, extremely low fat, extremely low cholesterol, excellent!