In the last game (galciv 1), the UP met every year, same as in this version. however, it was based on months, not years, so it met about every 12 turns, now it meets every 52! I jsut finished playing a fairly long game, where I got an influence victory over a large galaxy with 7 opponents on challenging...so yes, it was pretty long, and I only went through about 6 years. Now, that's well over 300 turns, but the UP did almost nothing because it met so infrequently. Also, some of the ingame summaries become odd. For instance, the victory summary says that other centuries I became culturally dominant. Well, actually it was 6 years.
Just a thought, maybe something should altered?