Yes thats the case in big cooperation. But Jolla is small company thats big difference.
Actually they really need to make more operators onboard on current phone if they had to survive even with one phone is my guess... And it may happen or may not depend on how Jolla get attention now. But they can't do a second device themselfs I really doubt....
Its reality of business where big players eating the small. Whatever we like it or not...