Interesting that in the title, stated in absolute terms in the text, and from the designers they interviewed, they cite getting lost as crucial for the genre. Personally, I disagree. Getting lost has tended to be why I didn’t care for certain games in this genre, like Axiom Verge, and it soured my otherwise higher opinion of games like Hollow Knight and Symphony of the Night. Still, I think this is a good exploration of the genre and what makes it tick.
The “metroids” and the “vanias” do definitely feel different, but the cross section in that Venn diagram is pretty obvious, and that’s what the genre is named for. I prefer the “metroids” to the “vanias”, but even the “vanias” have tons of non-combat upgrades.