Would "exporting EDLs" have applied to a home usage scenario? Avid videoshop and cinema are home use applications from the late '90s. I'm guessing the presumption is you were either capturing with a spigot or you had something like a 630 or 6200-6500. (VideoShop 3 in particular seems to be from pretty early in the '90s.)
Premiere and Avid's higher end products would of course have supported those options, although Avid is also associated with being an appliance into which you insert a 6-slot II or a 9-series Quadra or Power Mac. I'm guessing it was at that level that compatibility with VISCA applied.
I know that Premiere 3 (~1993-1994) had an option, with serial control of a deck (LANC or plain RS232, perhaps a few other protocols) to capture video in increments of a few seconds, rewind the deck and make another pass at it, allowing for a very slow and probably ultimately not good for the deck capture of tape. In a lot of ways, the actual limit was your imagination and how much space you could get for video.