That is not incorrect, but it is incomplete. Dealers move to sell EVs when they think - perceptions matter more than reality - they can make as much money doing that as they can with gas cars. (Unless the dealership has a lot of free time so there is no opportunity cost involved and they can try anything just for grins; but many dealers in that situation go out of business. All of the ones I have visited have been swamped pushing their gas cars, and most have explicitly told me that is the reason they don't want to bother with EVs). Low perceived demand is one piece of the puzzle; others have been listed so I won't list them again.
The biggest issue is that it's all circular. For well over a decade dealers and automakers have pointed to low demand as a reason to not sell EVs; but they define demand by sales - which can hardly be expected to be high when few places sell them, and some of the few that do try to talk buyers out of them. A lot of consumer resistance is based on - hey, if those newfangled cars are so great, why doesn't everybody have one? Because nobody sells one. They don't sell one because nobody buys one. A big circle that can't be broken until dealers try to sell them, or automakers figure out how to sell around the dealers. Dealers trying to sell EVs is not sufficient to guarantee success, but it is necessary.
I have been very careful to say that things are changing, this is not a problem at every dealership, and that there are ways to overcome it. But the problem of dealers being reluctant to sell EVs has always been a major issue for the industry, and still is. Most dealers still don't sell them at all.