If these projects actually come to fruition and achieve their target costs, that would be amazing. However, it appears that they are not yet online, and so nobody knows if they will actually achieve the costs they think they will. So far in this field, projections have not met up with reality.

Many of these people are the same ones who believe Tesla can build profitable $35,000 cars because the CEO said so, despite evidence of billions in losses (and subsidies).

If they bid for this work that is all they will be paid for the energy. So if they fail it is their own loss

That’s not the same thing as being profitable now is it. Power companies go over budget all the time on builds.