I finished today as well. Overall, I thought it was fine. It’s clear it was meant to show new players different parts of the game. I was actually glad it was so succinct without much grinding. Almost everything you need was within the confines of the expedition, either as a reward or available somewhere along the path.
While I always like the cosmetic rewards, it annoys me that the colors and textures never quite match the existing customizations. I wish they would go back and make everything a little more consistent.
I often keep playing my expedition saves and get them into an end-game state. I haven’t decided if I will this time.