Monster Hunter wasn't a reveal, it was announced months earlier so we already knew about it.

FF7 Revelation we already knew about, Witcher 3 I think we already knew, Hyrule Warriors, yawn, already played it 6 years ago, Starfox Pokopia DLC was minor and meh, Fire Emblem we already knew about, Professor Layton we already knew about.

Kingdom Come II, legit a good one. 

Yokai Watch 2, old game and AI slop. Pikmin 4 DLC, underwhelming. Onyx looked low budget and meh. Xenoblade Chronicles 3, already played it 4 years ago, Amiibo, meh, I'm here for games not toys.

Resident Evil 2-4, legit a good one.

Tomb Raider, already knew about it. Meccha Chameleon and Cairn, meh, look like the kind of stuff that goes viral on steam among meme kids, not impressive. Switch Sports Resort, already knew about it, Megaman we already knew about.

Kirby and Metroid were great.

So like 80% of it was just recaps of shit we already knew about, there were almost no big surprises outside of Kirby and Metroid.

Nothing will ever top that Direct that featured like 6 farming sims in the same presentation.

I'd specifically go with the period where reveals for Smash Ultimate were a regular occurrence since that added a lot of fun and hype. The Sans costume reveal for example led to so many amazing reactions. I think Directs for most people will pick up again once the next Smash is revealed.

As somebody who was in high school at the time (and played in band, where "Sans Undertale" was the butt of about half of all jokes), this was an earth shattering reveal for some of the people I knew lol. I think Undertale has a very good shot at having an original character join the roster come Smash for Switch 2. Sakurai and Toby are on very good terms from everything I have seen.