This is a poor excuse. Given their moves into content production, Apple should make a real TV and it should be the best TV ever by far. https://i.imgur.com/2Ldf3qW.jpg

What features/experience do you think is missing in current models that apple could possibly solve for ?

With the connected apple ecosystem this would actually be very powerful. 
Watching something on the road, come home and play on the tv directly. With Apple studios anyhow they are producing top notch content

I’d start with making the display way better… Apple’s the best at building screens.