This article didn't sit well with me either. All the examples were completely anecdotal, came from an anonymous source (a "regional service manager"), and there are no citations. Footnote 1 references a "written Tesla report" but that's hardly a citation.

It may be that there is a real issue here, but I would like to see it corroborated by some actual evidence.

Really? It reads to me like if the battery of a Tesla fully drains, you need to pay $40K to replace it.