Speaking of scanning, what a great system. I could easily see how this could turn some people off, but I enjoy soaking in every little bit I can. When I devote time to a game, I really like to get lost in it (took 90 hours to beat DA:I without the DLC). The scanning in MEA reminds me greatly of Metroid Prime. You aren't scanning to increase arbitrary numbers, you are scanning to learn more about the environment and alien objects, the arbitrary numbers grow as a impact of scanning.
I don't get the comparisons to Metroid Prime. In Metroid Prime, every scan told you something really interesting about the world, and relatively few objects would show up as scannable-but-unscanned. Samus would also move at full speed and be able to jump, etc., while scanning. On the other hand, Ryder is slowed to a crawl and can't move over even step-like obstacles, while all kinds of garbage is highlighted for scanning (for example, on Eos, each pylon is individually highlighted, even though they all offer the same banal text). Like crafting, looting, and mining, the developers apparently decided to make it slow and full of junk for no purpose but to pad the experience.
I think the biggest problem I've had with multiplayer is the flow of menu design. I was having a hell of a time muting people that just kept their mics open. One game I was in had a bunch of what I assume were college kids talking about graduation and job interviews. I could not mute them,
Every multiplayer game should have a permanent option to mute all mics (at least for public lobbies). At least a quarter of the matches I've been in have had either trolls/griefers or people with bad audio feedback massively disrupting the experience. Yet none of the matches I've been in have had anything of value added via voice chat.