Yes, this update actually pushed me from my system, to go out there in the black, and keep expanding.
It's quite hard, if not impossible to build up a perfect nice, large system, producing all the materials required for colonization.
For example, if you want to produce Insulating membrane it's very hard to do this and at the same time to produce the industry commodities.
This wont work well. You need to focus. A "rainbow" system that offers everything wont work well at the moment.
If you want a great refinery, dont build Hightech or Industrial.
If you want a great Hightech, you will avoid almost everything and go purely Hightech.
You might have instances where you decide to not build a port on/around a planet to avoid the planetary economy.
And: building strong ports with a clear focus in the local zone is the way to go. Those 2slot ports wont cut it. You need a strong local influence with strong links to counter the weak links. An economy influence of 3-4 or more in the station.
E.g. my Victoria Wolf Steel is now in the state i want it. It is a great refinery that is Fleet Carrier serviceable. Main goal in rest of the build is to keep it that way. With a Waterworld in system i add Tourism with an Orbis for max population boost. Then i can build up tourism on the remaining - mostly tidally locked - planets. On the last planet i will go for extraction, because there is no Tourism point generator.
And this puzzle will be different for all systems.