I think it's important to listen to Toyota. Arguably one of the best car manufacturers in the world. They may have some insight regarding EVs. EVs won't go away, too much has already, foolishly, been invested.
Toyota can see the cost for the transition. They will wait until the tech improves and the r&d is paid for by other manufactures. Once solid state batteries become reality i think the major transition will begin. My truck has been in the shop for the past week and although it's nice to be able to fill up at the station the cost of gas is cutting into my spending money.