I never implied that Icelandair or Finnair were industry innovators. But when giving an example you have to look at what comparable airlines are doing. Thus FI and AY are similar in size and geography to EI. (and in geograpical positions, FI and EI operate on teh periphery of Europe, AY offers shorter USA-Euro-Asia connections that the rest of Europe)
Looking worldwide the prime example of this scenario has to be the Gulf carriers. DXB and AUH are pretty much central to the majority of locations on the planet. In the case of EK they are offering so much capacity that they can undercut other carriers (who may well be shorter in distance/time) using their massive economy of scale.