I've got a different take. Appeasement never works. That's just feeding someone else to the crocodile hoping that it eats you last. The more extensive the MM entries get, the more ticked off someone will be.
How about instead, make the main entries rather short but cover the basics of all the ground that needs covering? Have a picture. Have the main stats. Have some typical motivations/goals. Have a few lines or stat information related to ecology. Point to some basic tactics/capabilities. You can write out most of this in text where it makes sense. This might end up a lot like the 1E MM.
Then have separate sections elaborating on all of the above. So don't give me two paragraphs of ecology/society on goblins, the same on hobgoblins, the same on bugbears, etc. and stop. Start there, and then have a more indepth "article" on "goblinoid ecology and society" which compares and contrasts goblins, hobgoblins, etc. The same thing applies to the more technical abilities, roles, etc. Have a section on "controllers" and another on "lurkers". Then also have separate sections on "sneakers"--which is a lot like lurkers in some ways, but coming at it from a different angle.
That way, you won't have the problem that delericho mentioned. When you introduce another goblinoid monster later, you can simply include the stuff that makes that creature stand out from the other goblins, and reference the same article. When you want to write an "alternate goblin ecology and society" article for Dragon or some campaign setting or merely for the heck of it, it ties in with the monster manuels as written--just replace the old article with the new one, if you like it better.
Oh, and index the blasted thing six ways to Sunday.
You can't move stuff out to a ghetto and satisfy the crocodile. It is offended that the moved stuff even exists.