No I think it's very plausible. But I see technology or scientific advancements that could cure stuttering coming from research to help stroke victims or Parkinson's diseases. Because people can often start to stutter when they have these conditions. There's more funding going to these more front facing conditions since people are more aware and knowledgeable about them than stuttering. I actually saw on YouTube that they developed this device to help a stroke victim who lost their abiltiy to speak. They gave them a neural implant that converted what she wanted to say (her thoughts or sub-voiced words) into words on screen.