You are comparing apples with eggs tbf, look at live football coverage, Sky have one host and 2/3 pundits, absolutely no different to what the BBC or ITV do, as its what the consumer expects. This isn't the 1970s anymore with no host and a commentary done down the phone.
The BBC don't have 2 hosts for "every single programme" btw. I am sure you know this and you are exaggerating a little.
Not really. BBC Sport is based in Salford and people like Dobby would happily want every single sporting event to be done on the cheap. No people on location, no fancy graphics, the smallest studio possible (i.e. a broom cupboard, akin to the old CBBC studio). Heck, maybe just one camera operated by remote control, why waste money on a cameraman?