I think for me the lasting impression of this Direct - and its major strength and factor in building excitement and positivity - were the headline games coming so late in the generation but also coming in a way that addressed fan frustration or expectation.
Not enough content in Mario Party? Addressed.
Mario & Luigi disappearing? Addressed.
Zelda never being playable, and new top-down Zelda not present? Addressed.
Metroid Prime 4 not being shown? Addressed.
Four out of five major first party announcements were new titles that fixed long-standing issues in the Switch era. DK was a bummer, but a predictable one for me, and while much third party content fell into the void of Filler for me, Zelda, Mario, Metroid plus Fantasian, Dragon Quest and to an extent Mio made this Direct massively exciting.
I don't even care about when I next hear about new hardware. Switch is going out with a bang.