It's few systems, not planets.
And that's a sailed ship as far as I'm concerned.
The game will NEVER achieve the original goal of having "up to a hundred systems", not with the amount of work required for each one. Not even with all the "streamlining in the creation process" they worked to achieve so far.
The good news is that arguably it doesn't really need to. One system (Stanton) is already a fairly big player arena, two more are allegedly coming soon (Pyro and whatever the other was called? Nyx something?) and I don't think it will ever need more than five or six in total to offer a LOT of playable areas and variety for every taste.
They DO need to work on improving the moment-to-moment gameplay loops, though, because currently after the initial awe the novelty wears off fast and what you are left with is broken AI (not as "dull" as much as "literally barely working" at best and "not working at all" every time a server craps itself) and repetitive computer-generated missions every time you are not strictly interacting between players.
Yeah, watched a bunch of stuff recently, and it's staggering what they did with the amount of systems they have. Individual, completely working and individual stations on planets, with physical trams and hangars and shops and whatnot, believable biomes on each planet, gas giants, dying stars, completely walkable space stations and whatnot. Funnily enough, this thread lead me down the path of just dipping in for a ship and wanting to try this out, there's _so_ many videos out there in the vein of "I used to play Elite Dangerous but omg you guys should look at SC".
What seems to be a big void for me is the whole exploring part, which I loved in Elite. Given the "small" amount of space, it's of course pretty much completely charted, so there's no deep space surprises or even machine created outer space systems. I really hope they're doing something on that front later on. But the rumors of CIG doing absolutely nothing but selling ships seems to be wildly exaggerated and simply untrue.
I will report how this story unfolds, I'm wildly curious now :D
Edit
Say what you will, but you can't tell me you're not watching this video thinking how this is really cool