Sadly, for you, the article does not say Tesla used tape in-lieu of heat-shrink tubing or even mention heat-shrink at all. It simply states a fact that "factory tape is high-quality and looks as if it’s shrink-wrapped on a part" to provide contrast to the product Tesla was using.
The usage of the tape, as suggested by the article, wasn't for electrical insulation or wiring protection.
The usage of the tape, as suggested by the article, wasn't for electrical insulation or wiring protection.