With latest data, has Roche's Tecentriq found a blockbuster lung cancer niche?

With latest data, has Roche's Tecentriq found a blockbuster lung cancer niche?

Source: 
Fierce Pharma
snippet: 

So far, Roche’s Tecentriq hasn’t been able to find a piece of the lung cancer market to call its own. But that may change after its latest trial win.