Ah but GrendelQ - we're not talking about language fluency, we're talking about speech fluency - deaf people having trouble with articulation and resonance are not considered fluent in speech. Slurring is one such example. Starting off speaking clearly then ending in mumbling is another.
Please look up fluency. You will see no mention of resonance, articulation, even clarity. You are talking about a very different measure. The issue we're discussing is fluency.
You took issue with the word "fluency" as used in the opening of the OP's posted video where they described the scene as "Deaf children learn to listen and speak
fluently" and said that wasn't possible.
Beclak has repeatedly stated that no d/Deaf person can ever be fluent in a spoken language. I continue to disagree.
I know d/Deaf people who describe themselves as fluent in both spoken and written English. I've spoken with d/Deaf people who are obviously fluent. They might have a deaf voice / deaf accent, and yet they are still perfectly fluent in using the language.
I know d/Deaf people who describe themselves as fluent in ASL. I can't judge that, because I'm not yet fluent, but I sure believe them. They may be easily distinguishable from a native-born signer, but still perfectly fluent in using the language.
My close friend is an amazing writer. He has terrible arthritis and has been experimenting with software programs to transcribe his drafts, he's tried using shorthand-style notations, voice programs, he often types entire pages with a single finger (I'm a two finger typist, too
). His handwriting is horrible and unintelligible. He's still a fluent writer: his language flows fluently despite the alternative means by which he completes his work.