I don't necessarily think it means it's not coming, because even the original quote sounded like they were still in the process of considering it. Maybe they wouldn't have even talked about it unless it wasn't coming, since the questions wouldn't stop, but it did sound like the were still in the process.
That being said, I never got the sense they were saying it was confirmed, far from it, but the work they were doing wasn't the normal lengths a developer goes to when simply thinking of a potential port imo, so I've always thought that, regardless of whether FFXV comes to the Switch, it is a good sign for future of the console.