From the scattered information and models available, it appears the greater risk is in Hawaii than along the continental US Pacific Coast.
In large scale evacuations, people get injured simply in the abnormal disruption of routine workflow, so the risks of damage and injury might be greater if everybody were evacuated, than running the risk of the tsunami being nothing more than a 2-4 ft tide change.
(The again, if the forecaster’s family lives in Crescent City, they might not have time to evacuate if everybody else of the west coast were also evacuating, clogging up traffic,.....but I don’t think there were any ulterior motives...)
Per Twiiter:
7.7-foot tsunami wave crashes into Talcahuano
To help understand, that’s 7.7 feet, on TOP of existing waves, with many minutes of water behind it.