if any of the excluded accounts feel they were improperly treated, they can submit a proposal on the Hive chain to have Hive funds equal to their Steem funds at the time of the fork distributed to them. Of course, those with Hive tokens would have to agree and support their proposal (which I find very unlikely), but it does, at least, create an opportunity for them if that's the right path forward.

I'd vote for a proposal to return all funds to users that were not SINMS funds. How many tokens is this anyway? I imagine it's a relatively minor amount of tokens, but creates a large perceptual impurity in the new chain. We shouldn't be taking tokens from those we disagree with.