According to the press release, you're pretty close:
Created over the course of four years, Making a Door Less Open is the result of a fruitful “collaboration” between Car Seat Headrest, led by Will Toledo, and 1 Trait Danger, a CSH electronic side project consisting of drummer Andrew Katz and Toledo’s alternative persona, “Trait.” To realize this, the band recorded the album twice: once live with guitars, drums and bass, and once in a MIDI environment using purely synthesized sounds. During the mixing process, the two approaches were gradually combined using elements of each, with additional overdubs.
I wouldn't be surprised if the label puts out both of the other "versions" of the album within the next year or so