Yeah this idea that the unique value proposition of humans is now our motor capabilities rather than our cognition is unnerving as someone with dyspraxia. Like, oh good, they've figured out how to convert it into a much more limiting disability by commoditising apparently most knowledge work. Great.
If all the AI booster dreams come true with nothing slowing them down, the value proposition for an average human will change to, in this order:
1. At least humans can still do highly specialized physical work
2. At least humans are cheap to run on low-value hard labor tasks
3. At least humans are desperate and highly expendable, in some types of work it's cheaper to 'use one up' and replace them with another than to run and constantly repair robots
4. Humans are useless for all work and therefore have no value