CC/subtitles would work fine but anyone can do that easily. Also the interpreter also has the added benefit of distracting the normal dazed person from comprehending the bullshit coming out of these tyrants mouths.
But could it also be being used as a psychological 'stamp-of-approval'?
Closed captions are often inaccurate. I don't see what's a conspiracy about this.
If you are going to pay a person to sign. You can pay muchless for an accurate transcript. Also why is this universal, not just in Amerika, it is Global/Universal, that every politician sided with a sign-language-interpreters.