Not necessarily
EVs have other advantages - better reliability, less maintenance, low fuel cost, quiet, instant torque from a standstill. People may put up with some inconvenience in return for those.
There may have already been batteries developed good enough to gain wide acceptance - car makers won't use new types until they've undergone several years of testing to establish reliability and durability. There are some now undergoing that testing that are considerably better than those in use today.