Do I have to be politically correct and leave room for the possibility that this isn't Nintendo specifically making a graphic to place Breath of the Wild in the Zelda timeline? I mean, it is possible. But no, no. Nothing personal at all but I'm not the one who created this graphic, I have only the smallest of irons in the fire (I thought BotW would best not fit into a single timeline), so I'm going to say that this is a biased understanding but from my point of view, it's not even an interpretation. I can't help but see opposition to this as being anything but an unwillingness to accept where Nintendo is placing BotW on the timeline (for now). I don't understand how this is controversial. I respect that people do not like the timeline placement, I understand that it could change, I don't even think that a timeline is necessary (and it's probably negative for the series), but this is merely a presentation of fact. Interpret the facts as you will but this is Nintendo: god of Nintendo games.
If anything good comes of this, I think it will be that Nintendo shows us that the Zelda timeline is pliable and not set in stone.