The order of operations was different: the packages ecosystem came before the imports language construct. The location and the name of libraries are not correla

The order of operations was different: the packages ecosystem came before the imports language construct. The location and the name of libraries are not correlated (PHP is closer to Java here, in the default case). Also, the idea of tree-shaking means you don’t want to import the whole thing (options 1 and 3) when you use something like webpack. Renaming let’s you use competing names. There are decades worth of history and libraries to accommodate. Your last sentence is like a C dev asking a Java dev why they don’t just compile to x64 and be done with it. It comes across as flippant and will likely attract downvotes.