My guess is a miscommunication. Tesla employee was probably saying something like they will have 300 supercharger stalls TOTAL between Barstow and Baker. And we are already more than half way there.
The problem with this route is not so much the total travelers over the course of a year, but the fact that everyone travels this route at the same time (Fridays, Sundays, and Holidays).
The problem with this route is not so much the total travelers over the course of a year, but the fact that everyone travels this route at the same time (Fridays, Sundays, and Holidays).