Yes, that's why I'm asking. If the game now uses the "chunk" system, for example, it can also optimize the server performance depending how they build it.
This is, for me, one of the most exciting daily updates in ages :> Hard to get hyped about the other ones when you can't run at a decent framerate (I come very close, but not quite close enough..) Hopefully this, and future optimizations, will open the game up to a lot more potential low-end laptop customers WOO-WOOO!
Speaking directly from experience with this myself.... Because it's easier. Sometimes getting a prototype running is much more important than than worrying how fast it will run. You can always optimize later, and generally programmers won't worry about optimization until after they've got a working product. Optimizing from the start leads to over-thinking your projects which tends to lead to an even bigger mess than under-thinking them. You end up with really optimized code.... That doesn't even work.