'without authorization' here is going to be tricky. author probably did have authorization to both github + npm? and didn't knowingly cause transmission to anywhere else? the rest of the steps were pull, not push.
OK, but should cloud providers similarly be held accountable for screwing their customers through negligent acts - to come full circle, like pulling these updates without doing any checks or QC?
The issue we're discussing here is based on 18 U.S.C. § 1030(a)(5) (note the last digit) and "authorized access" is not mentioned there at all. This section deals with damage and not access.
https://www.natlawreview.com/article/supreme-court-ends-long...
Edit: Note that I'm seeing this the same as a virus, not the same as a data-extraction hack.