The Mac didn’t have a CLI in the first 16 years or so, so there’s no traditional “execute” meaning for the Enter key. I’d argue that the thought here was that by pressing that key, you’d want to enter a new name for the selected file.
That's not a bad thought, but traditiona Mac keyboards didn't even have an "enter" key. (And nor do their current tenkeyless ones.) They just had a "return" key. The "enter" key only came around when the 10-key numpad was introduced, and it gave a different key code than the return key (which lives/lived where "enter" lives on PC keyboards).
I don't recall whether "enter" renamed files, and I can't check whether it does at the moment because all my mac keyboards within reach are tenkeyless, but "return" always has.
