I know FO2 has a lot more easter eggs, but it's hardly as if FO1 lacked them or anything. Area 51, space-elvis, godzilla, Dr Who, A boy and his Dog, and probably half a dozen more are in FO1.Personally, one of my issues with Fallout 2 is that it went in too hard with the pop culture easter eggs, as well as being far more wackier then Fallout 1. Something that Bethesda-fallout seems to have noticed and leaned into more.
Also the fact that no one at the Enclave Oil Rig noticed the giant pre-war oil tanker docking with their hidden base or investigated it seriously. Either that or I am SERIOUSLY missing something.
If FO2 has an issue with pop culture, it's only because it's just a much larger game in general, and thus can fit in a lot more references. The spacing between them is honestly not much closer than FO1's events/easter eggs.