The Mirai just has been replaced by a new version, so it is not a first generation car any more. And the fundamental problems of FCEV can't be addressed so easi

The Mirai just has been replaced by a new version, so it is not a first generation car any more. And the fundamental problems of FCEV can't be addressed so easily. The tanks are huge and you cannot make them smaller. This means, space in a FCEV is more constrained. Nor can you change the energy consumption of the hydrogen delivery much. But the fundamental question now becomes: considering the performance of the electric cars you can already buy, what is the incentive to invest billions into FCEV development and even more so into fuel stations and distribution? Especially, as there isn't much green hydrogen anytime soon?