Now it says this also in the specs:
"Free long distance travel using Tesla’s Supercharger Network"
The web archive shows that on March-30 it was:
"Supercharging ready; included when equipped with the 85 kWh battery"
Looks lihe thay are getting ready to limiting local supercharging.
I have no problem with this, but I don't think they can do it after the fact. It's likely VINs lower than x will have unlimited supercharger access. Above x will have limits for local charging. X= vin issued after the policy change.