I think they painted themselves into a corner to try and develop the characters.
Design so far has been laser-focused on the ships, tech, and uniforms. I haven't read anything about them having a dedicated planet design team. Pahvo was fairly boring (and that tree thing looked awful IMO), but the sand planet and rebel base were interesting and fresh.
Their dedication to practical effects is super exciting, though. We probably all agree that the Klingon redesign is a disaster (ironically enough, Fuller wanted to keep the TOS uniform colors but was behind the new Klingons) but the prosthetic tech is great. Saru looks fantastic, and that's all makeup and prosthetics.
Check out this video of the Shenzhou set construction:
So they've got those huge sets made for the Discovery and will be able to reuse parts of the Disco and Shenzhou sets for any other Federation ships we come across. The Klingon ship set is done, there are a bunch of pieces, and they seem to be modular. This should free up a lot of time for set design in season 2.
By reusing parts of the Federation ship sets (like they did with the Klingon ship set for the rebel base), we could see some great cities on away missions. As long as they don't spend too much time designing stuff for a million new aliens, the away missions should be cool once they finally start to happen.
...or we'll get a bunch of color-swapped natural landscapes like on Pahvo and way too much ship time with fancy new aliens.
