Aaaah, he's got carriage return and enter mixed up. The whole reason for the symbol being an arrow returning to the beginning of the line, is because it's the return key. I love the Canadian enter symbol, an arrow pointing into a box.
(I've had blank looks from a few colleagues after suggesting they press the Return key (that being the term I used to refer to the Return key) - which makes me wonder what percentage of people even know that Return is the name of a key. Perhaps we should retire the term entirely.)
Numpad Enter is definitely a distinct key though, but I've never seen it treated differently than Return (except for randomly not working in some contexts that accept Return)