For Huts and Wells

First: Canopy, Spruce
Second: Twilight Oak, Oak
Third: Birch, Jungle, Mangrove, Dark Oak
Fourth: Magic woods

Is acacia being removed from the huts entirely?

Yeah, we decided the color wasn't really a good fit for the huts

Fair enough. Yes, this answers my questions.~

Makes sense.
Also, why will dark oak be so much rarer than canopy when the two are quite similar in shade?
And did the team ever consider the 1.16 woods for them? Crimson in particular could possibly look decent

Dark oak is slightly lower just because it's darker than canopy or spruce, and we felt like those 2 fit best. As for nether woods, I don't think that they exactly fit in the TF first of all, and the colors are rather obnoxious and would severely clash with the hut style. Hope this answers your question
Edit: oh I forgot we lowered dark oak to the 3rd tier. Honestly not too sure why we did but the builders on the team made that decision so I'm not even gonna question it.

Minor adjustment: Dark Oak moved to Uncommon Rarity than Rares. Makes for a nice pyramid of random with 2 commons, 3 uncommons, 3 rares, and 4 treasured woods.