I mentioned that if you don't use T9 you can't perceived it's merits. Once you get used to it, you can't live without it.
Every number key, even on iPhone, has letters below the number. It is very easy once you start using it.
Regarding your statement about typing with a keyboard, I clearly described a difference to you. It takes much more taps to call a person and also precision while typing using small keys on the keyboard. If you are in the go, it is very hard to type precisely. Whereas typing on a big number keys is very easy.
Why not just use Siri? I know it's not your default (yet), but it'll be quick and easy.
If I'm calling someone not in my favorites, I usually use Siri, which is quicker than pulling down and typing the beginning of their name in the search bar, which is my second choice.
Siri can't understand names in my language, this is first. Second, I explained you many times that typing is not easy and time consuming especially when you have many languages.I rather have Apple perfecting SIRI then spending their time on a T9 keypad.
You know, in Asia, people love to text, and I know many people, including family members, that mastered the T9 keypad. Guess what, they are not complaining nor miss the T9 with these new smartphones. Plus, there's this thing called search. Simply initiate spotlight, type in first few letters, and done.
I take my analogy on Linux people with command lines. To them, command lines are faster than interacting with a GUI.
If you like T9, good for you. But you are like that Linux programmer that want people to learn command lines. Apple prefers more intuitive ways. Pressing 2-6-2 for Bob is not intuitive. Searching for Bob, or asking Siri to call Bob, is.
If you really prefer T9, then maybe the iPhone is not for you. Sometimes you just have to find something that fits you, instead of claiming the phone maker not catering to consumers (you).
Third, If you don't like this feature and can live without it you are free to pass by and without paying attention to this thread, instead of implying that whoever uses or depends on this feature is kind of oudated, not able to use the advancement of technology.