So does that mean they have changed the way planets respawn?
From what I remember (never played it that much, and might have changed since launch) the way the planets worked in the game was that the seed of it spawned as you entered the atmosphere. You could then run around and do whatever, and it saved the state of the planet around you (digging holes and the likes) as long as you remained there. However, when you left the planet, it reset. The last part there is why I never understood the point of the "we have added base building" aspect, as the goal of the game was to explore like a nomad, ever moving closer towards the centre of the galaxy. Once you left a planet, there was no point in ever going back as it reset, so taking the time to build anything was fairly pointless and time wasting compared to the goal of the game.
Adding the ability to create a portal to a planet you build on and marked as a "main base", travelling back to it from new planets, would make it so there is actually a point to setting up a base station for storage and the likes. However, that would also require the game to save the state of the planets you encounter, which I am fairly sure it didn't before.