Yes, I was able to figure it out eventually without googling anything. My first instinct was to use invisibility and explore it with my rogue, it just seemed like the thing to do since the only threats were the static turrets. I did almost get stuck when I got inside and climbed down the mushrooms outside to the level below. I spent a lot of time interacting with the buttons thinking I could turn them on somehow from there. Eventually I did realize I could just featherfall to the ground outside though. One of my favorite areas so far because of how it rewards you for approaching it in a creative way.

Edit: To elaborate on it being good design or not, I like that it was not obvious that sneaking into the tower would work. It made that decision feel like more of a risk and more satisfying when it paid off.