i assume you are referring to the party search tool, not the party system in general. And if so the party search function would work perfectly fine except the fact that no one uses.

However I do believe the old system of party flags was better due the fact people like to start a task with a full party, not start a task and see how many people turn up later down the line which is what happens more often than not due to the fact less people wish to be party leader compared to people who just want to join a party