No, the battery charge cycle is really the main problem!
everything is expensive when is new, old gas station where also expensive, but when demands grow, so will the deployment.
The problem is that batteries are EXPENSIVE and that price must be paid during the lifetime of the baterry. This makes the all process very expensive, the price of gas is for many people cheaper than having a "monthly" subscription to replace batteries on "gas" stations. This keep the sales and the demand low and everything will keep being expensive and rare.
With longer batteries, their cost can be paid during more time, making everything cheaper (think in airplanes). With cheaper subscription more willl buy EV cars and the demand for gas stations will go up, reducing the deployment cost.
Standardization is quickly solved by the car builders if there is demand, or by the government (think in Europe) to speed up things. Just look to the LPG/GPL cars, they aren't many, but a standard for gas station was created without much trouble.
This problem is always the same: better batteries will solve most problems by improving the demand, being best by much higher energy density, or by being much cheaper or last much longer. If you can get 1 of this, is good, 2 is great, 3 would be as finding the holy grail
Also don't forget that you can also combine batteries, you can use the long lasting battery for the small charge cycles (breaking, plug-in anywhere, solar, etc) and use the high density ones for the nightly charge (and if needed, to keep the other battery on the optimum charge level)