One-piece vs two-piece front pannier racks
I'm seeing that some low-rider front pannier racks are one-piece (eg Surly Front Rack, Tubus Tara) with a "loop" or "shelf" connecting both sides, and some low-rider front pannier racks are two-piece (eg Tubus Duo, Salsa Down Under) with left and right halves physically/mechanically independent of each other.
Obviously, fat-bikes and and some other design features may dictate two-piece front-racks.
But if a frame can work with either one-piece or two-piece front pannier racks, what are the pros and cons of each? If it matters, I'll probably use it more for commuting than touring, so parking and city-dwelling idiots may be relevant, I don't know.