Its not that I think it is easy. It's that I think it is necessary. Saying oh, its too hard, we'll do this right later isn't really an excuse here. Nor is, we're too cash poor. We'll do it right when we have more money. This is basically just Tesla adopting a really poor business practice and assuming that it's customers should just have to tolerate it.
Tesla is a special kind of car. But nothing about this business practice is necessitated by the fact that the car is electric. In fact, one could argue that since the car is "special" and "different" the manufacturer needs to provide more attention at delivery, not less. This is just a case of Tesla being able to take advantage of the high-demand status of their cars to treat their customers in a manner that would be totally unacceptable to customers buying any other car.