I also agree with the points discussed here, and reception has generally been pretty supportive, it looks like.
I have done one part of this in this PR: https://github.com/Aurorastation/Aurora.3/pull/16819
This gives access to port propulsion for engineers, without having to go through atmos. Though, technically, engineers can access the east part of atmos already; those atmos doors to the east and south are set to allow engineer access, whether intended or not. They still can't get to the guts of atmospherics, as the windoor blocks them.
There are merits to allowing engineers to keep this access, for repairs. The downside is that they CAN switch pumps to optimize airflow, but perhaps that small opportunity is not such a big deal. Again, my PR does not change this; they already can do it.
As an aside, I also agree with locking the tank computers behind atmos access, but that is something a future PR may have to handle, as that is a different discussion than a map change.