Please remember that hybrids will also require the same infrastructure. Moreover, its also a question of huge investments from the private sector who look at returns over a time period of 20-30 years. Hybrids are more costly to produce and since the focus is on going fully electric, will the investment in hybrid manufacturing plants be justified? If you are a businessman, would you put your money twice?
I dont know much about how all these things work. But purely from an investment point of view, I dont think its worth the effort going around in circles since the ultimate emphasis is on EV. Tesla and a few other companies seem to be doing fine. Its only a matter of building infrastructure from the govt side. Why govt even private players can participate in this like how we have private petrol pumps.