I noticed that cooking, baking and paper milling are in the Tier 1 group in the tech tree. However all 3 of those skills need a T2 (1.8) room. Would it not make sense that those are in the Tier 2 group of the tech tree?

Now a new or unexperienced player might spend early stars on these skills even though the crafts to unlock the necessary room tier materials might not be unlocked yet.

It would also make the flow path through the tech tree less chaotic (now the cooking and baking lines are very long and get jumbled in the end). It would also make the Tier 1 area a bit smaller and the Tier 2 area a bit larger evening out the space they take up on the tech tree.