Why don't dialogue wheels accurately reflect what the character is going to say when the voiced response is short enough to fit in the dialogue wheel? Is this because someone thought it would be confusing to have to separate between two different types of responses, paraphrased and non-paraphrased?
I don't think two is too much for anyone if developers would make it clear. It is just two after all.
Firstly lets put short responses in quotation marks. If I pick "Yes" option in dialogue wheel, my character actually says "Yes" and not "Sure". Secondly short responses should always be in the same color as the subtitles, so we could put the longer, paraphrased responses in different color. Also paraphrased options wouldn't be in quotation marks, because they aren't direct quotations.
Example:
NPC: "Will you do this thing for me?"
Dialogue option 1: "Sure."
Dialogue option 2: I'm not sure if I can trust you.
Voiced option 1: "Sure."
Voiced option 2: "Last time you escaped and left me alone. What can you say to make me to trust you again?"
Right? This should be clear enough for everyone?