Breath of the Wild looks far better on the handheld screen than on a big TV, I tried both and the difference was quite big.
So there goes your argument.
So what if the director and others left? You know what Studio these guys formed?
All the games they made have been received poorly by critics and fans alike.
2D or 3D doesn't matter, Retro excels in everything.
Breath of the Wild is a home console game, like Xenoblade 2. Both are meant to be played on a large screen, with full comfort in order to get the maximum of the game, its viuals and its ambiance. Xenoblade 2 exist in portable mode because it is Nintendo Switch, but it is not meant to be played that way. It's a home console game that should be played on TV and it's gorgeous with its artsyle.
I know that the new studio of the former Retro Studio executive had not been a success, but it can't be linked to their quality as a developper. Starting up their own company and studio is a hard task, you need to get customers, to pay salaries, they probably have little budget and are contracted for ports and others. The Metroid Prime lead left, but there are still other people from this team.
Retro did excel with Metroid Prime and with 2D platformer. Not "everything". Now they need to show us they can't do another game which is not a 2D platformer.