We (well, not me, but someone) airlifted food into Berlin for almost a year. The pier is theater, meant to look like they’re doing something. If they really wanted to help, they would make sure the supplies actually got to the people that need it, and not leave it on the beach waiting for more fish to evolve legs.
Why would they contact us? Kopernik got a lot wrong, but he was right in that we are nothing special. A species advanced enough to contact other lifeforms must run across planets in various states of ruin 12 a day.