There's a sense there that Scott wanted to tell more than he did but held back. Saving it for a more opportune time. Probably cooperating with police.
I sense the "different strategies" on how to handle the move/paternity issue was his way of saying Anna was listening to Howards advice to run off to the Bahamas and not Scotts advice whatever that was.
Yes, that and also important is his extensive involvement in Daniel's estate and autopsy. Wish I were the gal making the list of witnesses to call for the inquest because Scott does seem to be biting his tongue.