That's not what the article says. The article doesn't even state the problem.
The actual problem is that cold batteries have higher resistance, so these cold cars aren't charging. The owners need to run the heaters in their car for 30-45 minutes before they try to charge to be able to effectively charge at all.
Right if everybody's range is reduced (due to cold) and charging takes longer (to warm up the battery, if it wasn't warmed before arriving, which could either be user error or due to a car that was parked nearby outdoors before being taken to the charger), then the effective capacity of the chargers is reduced by a large factor and quite possibly people are running out of battery waiting for a spot. I suspect a large fraction are Uber drivers who may not have a spot available ti charge at home.
Indeed, it's not a good article. It is low on actual information about causes, just one sentence, it is low on context and comparison, and spends time talking about other issues.
It is IMHO pushing a point of view that it hopes to confirm readers' current opinions.
The article says nothing about the charger. (Maybe you can quote it?)
In general, Teslas won't supercharge until the battery reaches a specific temperature. It's well-known that a Tesla will sit at a Supercharger and heat the battery until it's warm enough to charge, sometimes for 20+ minutes.
As far as why this incident happened, I have no idea, and nor does the article speculate.
"
One expert told the news outlet that cold weather can impact the ability of electric vehicles to charge properly.
"It’s not plug and go. You have to precondition the battery, meaning that you have to get the battery up to the optimal temperature to accept a fast charge," said Mark Bilek of the Chicago Auto Trade Association.
"
The actual problem is that cold batteries have higher resistance, so these cold cars aren't charging. The owners need to run the heaters in their car for 30-45 minutes before they try to charge to be able to effectively charge at all.