I don't mean to spoil anybody's party, but it's easy to dismiss why each establishment is or is not on the list. It is true, there might be certain hashkafic reasons why a place is not in the list. But generally soeaking, it all boils down to kashrus. For example, bugs. Every single bug is five lavim. In one bite one can eat numerous bugs. Sushi is prone to infestation and requires a good checker. Not all Vaad establishments have one. There are many other Kashrus issues as well. There are many things Rabbi Eisen allows here, in accordance to Vaad policy, while he does not allow those same leniencies in Flatbush. Hence the list.