Part of the rational and basis for the mod/writings I have done center around Bosmer reaction to Imperial attempts to log Valenwood and build there.
The way I approach it is that there will be Bosmer who see the Green Pact as something to be 'worked around' and manipulated and others who see it as inviolate. With the mass just following on according to their own interests. I also have an angle on the cannibalism thing that puts it into perspective.
And maybe that is what it's all about - from whose perspective is a thing right or wrong?
The way I present it is that the Bosmer in the Cities are fundamentally more 'reasonable' in the eyes of the Imperials and far more lax about where a thing comes from so long as their hands are clean, although they have customs that are hard for Imperials to comprehend - cannibalism for one.
However I posit in my modding that there are 'purist' Bosmer who live in smaller communities deeper in the forest who do not see it that way, and they are in far deeper touch with Yffre and can feel Yffre awakening in response to the damage that is being done to the Forest at it's perifery - including the burning that occurred when the Bosmer and the Khajiit had their war. These Bosmer (astonishingly enough) see the city practice of cannibalism as barbaric and a desecration of Yffre's true will and the original Pact. It all being a matter of interpretation.
However although I base my writings and thinkings on interpretation of actual in-game Lore/books I am sure there are those in the Lore Forum who would not be comfortable with this approach here - hence I have to be careful and say be sure that you understand what is my own view that has not been ratified by Beth. At the end of the day I recommend you read the game books first before you chat with people on the forum here. The first book being the Morrwindy book titled: A Dance in the Fire. And do not limit your reading to Oblivion ... that stands on books from the previous 5 games - Arena, Daggerfall, Battlespire, Redguard, Morrowind - and a fair amount of new writings (some by devs) in the Imperial Library - find that site through the elderscrolls.com homepage.