I think at this point, its more a case of competition or
lack thereof. Flying huge cargo routes by yourself, yeah, your going to bank just as you would flying pax by yourself.
Nothing has changed in that regard.
Currently in GW3 in FRA. Cargo company with 43 planes has more income than 523 AC company from USA.
if we look at his fleet choice - he can easily now spam his base with pax plane. he will only need a small tuning to cover pax LH demand.
That would be a similar situation as two airlines from one airport, one going SH and the other LH. If there's no competition on either end, one gets the short end of the RPK.
If you want to compete with a cargo (or mainly cargo) airline, you have to fly freighter aircraft or aircraft with
alot cargo space. Otherwise, its a moot point.
Talentz