Flashing back to Metoid on the NES, did anyone ever consider the chozo holding the power ups alive or just statues? I always considered them statues, but then in one of the games, one walks you across an area. If they were alive, they move like turtles.
I assumed they were statues left by an ancient civilization. The handful that move in Super Metroid appear to be robots.
I imagine the "Adam authorizes this" method of power-ups in this game comes from a desire to have a plausible reason for Samus to not have her abilities at the start of every game. Ever since Metroid returned with Prime and Fusion there has been some sort of explanation for that. But there was no explanation for Metroid II or Super Metroid and I honestly didn't care. How come Mario doesn't bring a backpack of fire flowers with him everywhere he goes? I just saw it as a videogame convention. In every videogame you die again and again and no real explanation is usually given but who cares? Why do all these enemies I'm facing just absorbs blast after blast until they suddenly die? It's a game. It's how it works and no one questions it. Seriously, they could just start the next Metroid game with no mention of why Samus is without her abilities and she just finds them and I don't think anyone would have a problem with it. Once you start really questioning some of the barebones videogame conventions then you're going to ruin the fun for yourself anyway.
I think it all stems from this idea, that usually western devs talk endlessly about, that games should be immersive. The thing is no jackass is stupid enough to think a game is reality. It is always incredibly obvious that it is a game. So having a health meter and save points and in-game instructions and power-ups and constantly dying and being resurrected with no explanation really doesn't matter.
Other M's attempt to justify Samus regaining abilities crossed the line in that by not having me seek out the power-ups it has hurt my enjoyment of the game. The desire to provide an explanation has interfered with the gameplay. Next time they should not care and just let the game be a game. I never cared about why the Chozo put statues on seemingly every planet - it was just a cool way to get power-ups.