For me, I can input at least 100 characters with pinyin in a minute, but others could do at least 300 with "Wubi""five stroke"五笔, top to 500 by a professional typist.
You can type at least 100 characters with pinyin in a minute? That's impressive for sure. But I am highly doubtful, that's nearly a character every half second. This is impossible unless you are talking about 100 characters on pinyin without selecting the proper Chinese character and letting the input AI do all the choosing. The average is 20-30 characters per minute via Hanyu Pinyin (and that's with AI on, since the AI is not perfect).
Wubi and professional typists don't count.
A stenographer can reach 230/min in English words as well, An English word is about equivalent to 2 Chinese characters on the average.
Not crucial is subjective. A romanization supporter can say the preservation of culture is non-crucial also (compared to say more pressing issues of literacy, compatibility, reference material publishing, and worldwide promotion).
The lack of index is a disadvantage, but it is not crucial.