Forestry is being removed from Technic because the maker has started including code specifically made to break parts of Technic. From what I read, the Technic people added Forestry without asking permission. But then the maker of Forestry refused to talk to Technic no matter what they tried, so nothing could be settled. Sounds like an starfish move to break Technic instead of simply talking it out with the creators. ? says there is a patch which undoes the Technic breaking code in Forestry, but the Technic people still won't include Forestry until they have permission and the code is removed officially.
I bring this up because some big people in Minecraft have videos including Forestry in Technic, and it's a really big starfish move to do this... Actually, reading topics, did he remove the breaking code recently?