There might be enough lithium for EVs, but lithium is needed not only for EV batteries. Overall, there is no enough lithium to phase out fossil fuels. Not even for the first generation of technology devices. Here is the presentation given by prof. Simon Michaux where the problem is explained in more detail and supported with data:

https://www.youtube.com/watch?v=MBVmnKuBocc

Lithium is not the only problem, other minerals are too. And, just like the original article says - the pace of extraction.