You misunderstood something there. There is no way to claim asylum from outside the US. For good reason: It would completely overwhelm the system and lead to a massive increase in successful applications for political asylum. You first have to cross the border. What the US wants to do is expedite the process of processing asylum claims: https://www.reuters.com/world/us/us-unveils-rule-speed-up-asylum-processing-deportations-border-2022-03-24/