letsrodeo, these flies aren't pests to humans or horses. Their life cycle and behavior is very different from that of house flies. The adults (winged stage) don't even have working mouth parts. You could stand two feet from my BSF bin and not even realize there is a thriving colony in it.
The BSF give off a chemical that repels other species of flies so I rarely even see any blow flies, or house flies. The black soldier flies only come to the bin to lay eggs occasionally and they leave immediately after.
