the only downside i can see is that if you forget to give something a name, it "disappears"

just grokking this ... maybe. For the current go examplars, you stil must say

go_library()

so nothing disappears, In the new engine this would be

target()

or

{type_alias: "target"}

(in json format) given my quick re-read? So still no disappear that I can see.