True, but note I didn't say they don't do in-engine cutscenes at all :P I was being a bit cheeky with 'dislike'... mainly on the point that a lot of scenes now are rendered, and the replacement of in-engine cutscenes in anniversary editions is trending towards favouring CG scenes (as opposed to pre-343 where, iirc, all Halo cutscenes were in-engine).
But my memory isn't the best :P I believe if you were to list out all Halo-game cutscenes chronologically, you'd see that trend growing, post-Bungie.

That's not a statement of better/worse (though I do very much enjoy high quality rendered CG, and am excited to for H2A's revisionings)