(Even so, what you describe still happens on occasion for me, but it helps)
If they had a 2D text input they wouldn't be able to do momentum in swiping as well as horizontal (side effect of the horrible remote), but more importantly, the primary text input on Apple TV is voice, in the moment just hold the Siri button. It takes in letters over voice too. Worlds faster than any other input on tv. No wonder they prioritized on it.
The last glyph in the row of letters is the delete key.
That could be a movie about absurdity and meaninglessness of life...
But what if I need to input a language that's not supported or I just don't want to yell at my TV to search a video?
Of course, if you don't have your phone nearby it might suck but let's be realistic, how often you don't have your phone close by when watching TV?
P.S.: Yes, I know, if you are an Android user there is no way out and Apple sucks for that, not defending them at all.
There are actually many times I don't have my phone with me while watching TV. I carry it with me everywhere all day, but I try to keep it on the table most of the time when at home.
I don't need a dedicated TV keyboard. As I said, I work around it by using the TV apps, but it's annoying, and the most annoying part is that it's probably annoying on purpose to get people more on their phone.
And, Apple should be better at UI design than this. They were once, and not that long ago, but I think the UI team they've had for the last, oh, let's say seven or eight years -- going back semi-arbitrarily to iOS 7, but steadily infecting all other platforms -- have prioritized aesthetics over usability.
So I would agree with their design decision: make an elegant remote, use voice dictation for search and the like, if you need a keyboard, use your iPhone, and if you are not happy with that, get a dedicated keyboard. If you are not happy with THAT, well ...
But I can understand where you're coming from, I am just very frustrated that this user-interface-design-genius trillion dollar company can not change the input mechanism of one of their most used product from the:
a b c d e [f] g h i j k etc... Backspace
model with only <-> movement and no way to make an input correction other than backspace, to something like:
a b c d Backspace
e f [g] h forward
i j k l backward
m n o p
Which is the way almost all other TV-centered apps I use function and works much better.
Text input.
All the letters lined alphabetically with only left-right movement allowed. Takes ages to input anything. Also no corrections allowed. I actually exit appleTV and use the built in TV apps for when I need youtube and the like, because their input mechanism is not insane.
I know there is a remote app for iPhones, but you do provide an actual remote, make it work ffs.