Which is kind of the problem, because it implies they took a frame designed for the ICE powertrain and stuck some batteries it, which isn't the optimal way to do it.
Even then the difference is in the nature of 20%, which doesn't seem huge?
And the weight is going to be directional proportional to the size of the battery, which can be of arbitrary size. Electric vehicles with a >250 mile range are nice, but the average commute is a sixth of that.
I'm fairly expecting someone to soon make a sporty little sedan with a 75 mile range and a trailer for road trips that adds +300 miles worth of battery and gives you a place to put your luggage. And then you don't need the trailer 98% of the time and that thing is going to be actually lighter than the equivalent ICE car.