One thing to keep in mind about this discussion is that Starbase is different than other Survival-Crafting-MMOish games like Ark or Rust
In those games, the amount of benefit that's able to be gained by offline basebuilding is tiny compared to a game like Starbase.
- They don't have multiple metal types or damage types
- They don't have a substantial Z axis
- Building is largely based on huge triangles and squares
- They don't have an in-game programming language system for automation
- They don't have complex power distrubution systems
- The bases don't move or have any of the complex requirements of inertial force put on them
- Angles of attack are much more predictable due to lack of voxel tech
- All players involved are largely grounded to a 2d plane
In those games, the portion of total gameplay dedicated to creative research, 'science', testing is fairly small for the average player. In starbase, a huge amount of your time will be dedicated to these tasks. Ship design will be a constant task. You'll spend time gathering specifically so you can test a new design idea. YOLOL tweaking and expansion will be a constant task. You'll spend time gathering specifically so you can make more chips.
If you put all of this as available to do offline with infinite resources, you take an absolutely enormous chunk of the gameplay potential out of the shared, alive world, and put it into a sterile, empty, meaningless void.
Maybe eventually it will make sense to have an offline creative mode for the game once community-created resources and knowledgebases are super fleshed out, but that time will not be anywhere near EA launch. That would cause serious damage to the game's health.