Whether the balance of how much plastic we use is leaning towards too much depends on the upsides and downsides, and this article is pointing out that one downside we thought was significant is less significant than we thought.
Small correction: it’s not the ink that is toxic, but the chemicals added as a coating to help the ink develop. Still pretty bad for you though. Some stores have bisphenol free receipts (especially those that are all about natural and plastic-free goods), but they are rare.