I get your frustration with the wording. There has been common interaction with Eater and cards that replace accessing (like Siphon and Keyhole), that use the words “instead of accessing cards”. It’s easy to miss because the words “access cards” is squished in between other clauses:
Whenever you expose a card or access cards and do not steal or trash any of them, place 1 virus counter on Aumakua.
Players were used to replacing the words “instead of accessing cards” with a complete replacement of the access step (now called 5.5), but it’s very easy to miss that with the (correct) wording on Aumakua.
I wish they will start updating their template (or maybe start templating if they haven’t already) soon and maybe start bolding or italicizing keywords like that, so that it’s clearer to all players (and not just rules lawyers).