Sounds more like they are saying he is not finished. And since they said they are continuing with this story between Regina/Robin/Zelena for season 6 as well, the. It appears that Robin still lives. And since this report was published after the hotseat where it reveals a major character will die, I am not sure if Robin is the one.
Worth pointing out, this isn’t a real interview with the creators. It’s EW writing an article using tweets/previous interviews and smatterings of interactions with A and E. It’s click bait for a fandom that is currently in chaos, hence the title is very click-baity but the actual “article” isn’t anything at all to do with the rumors and Robin Hood/Sean Maguire. The questions they posed are very telling: it’s not about Robin at all, but about Regina’s HEA which is the “story that is continuing onward” not the R/RH/Z one.
What makes you so sure of that? You don’t honestly truly know that do you? How does that prove what you are saying.