They talk about it a bit in the Game Informer feature and it really comes down to lessons learned from making both Mass Effect and Dragon Age franchises and the barriers and challenges they ran into constructing narratives that involve save imports.
They haven't at all stated that future Mass Effect games, should they exist (they do imply they want to do more though), won't include a save import. They've recognised that the save import aspect exists, and specifically noted they've improved the technology in tracking choices and data.
What they're not promising is that Andromeda is part of a semi-focused and character/cast specific arc like the Shepard trilogy was. They're absolutely open to the notion of an Andromeda 2 starring the Pathfinder and reoccuring cast, but they're also open to other directions that can use save import data in interesting ways. Or in short; with Mass Effect they outright committed to a trilogy starring Commander Shepard. With Andromeda they're not committing to any sequels or reoccurring protagonist at all, but openly acknowledge interest in future Mass Effect games and the use of save content imports.
Unless Andromeda tanks I don't see how we'll lose out an Andromeda 2. In the GI article they state there were a number of ideas and concepts (like ship flight) they couldn't quite get right in time for Andromeda and would be open to trying again in new games. They're openly open to new Mass Effect and want to continue with the series. And Andromeda, unlike the Shepard trilogy, takes place in only a single cluster of the entire new galaxy.
