That's why I said implied and partially.Every time that was quoted it was pointed out he said that after season 4 was filmed.
"...We’re trending now, and beginning with season 4 and through season 5, to a much more singular sci-fi, action-adventure, emotional storytelling. And you know, the outliers are getting less and less, as we kind of focus on saying goodbye to each other and the fans.”
I was always of the opinion that season four was going to go even harder with the swings, because it was already made when season three got dunked on by some. I wish I'd been wrong.
But hopefully five is a good ending to the mixed bag.