But for that e-sim to work you will need to buy a contract with Dji and you can't outside of China. For the Dongle 2, you can only renew the contract in China and EU. Where did you find that transcript you posted above? I never seen that before.
It won't be range limited because both Canada and the US are FCC so range would be the same. The drone changes from CE to FCC based on homeport location and not where you purchase it from.