I believe the teams were, at least for the knock-out stage, Arsenal, AC Milan, Tottenham, Bayern Munich and Man City. So that is five, not four. My apologies. But still, for all the 'variation' in teams that you seem to speak of, 5 teams is no different, if not worse than with 5 star teams as all these teams are still available, and can still be extremely competitive.
The change to allow 5-star teams was decided well before Online Round 2 from what I know. However, you still are misunderstanding why having 5 star teams is actually more competitive.
There's this thing called the skill cap. Essentially, it is the amount of skill needed to play the game at its peak. Because 5 star teams have better players and can do things that other players cannot, they give the user more tools to work with. Because the user has more tools to work with, it means that the skill cap is higher. The higher the skill cap, the more competitive it is.True, it may make it easier for lesser skilled user to play the game because the stats are higher, but a more skilled user will be able to get the most out of 5 star teams. Likewise, when limiting users to 4.5 star teams, all it means is that the better players are bound by their team's ability, not by their own skill.
Without 5 star teams, players in 4.5 star teams and lower are prone to unavoidable skill errors even if the user has played it perfectly. Including 5 star teams actually takes luck out of the game, more so than having them banned.
You can work this argument backwards too. The further down the star ratings you go, the less competitive it gets and it is obvious. 3 star teams are less competitive than 4 star teams, and 4.5 star teams are less competitive than 5 star teams.
Moreover, there are a few 4.5 star teams that essentially become 5 star teams with a few changes to formation and starting line-up. You can't avoid the issue of there always being a most powerful team. If anything, this problem is more accentuated in tournaments where the teams are limited because of this problem. These teams would still be competitive against 5 star teams because of this also (as I stated earlier).
You will probably never accept this explanation, but I guess that can't be helped. However, this explanation is correct and if it wasn't, ACL would not have changed their rules. ACL did not change their rules simply because they thought it would draw more people in. ACL strives to be a highly competitive environment and the main reason they have changed the rules is because they know that having these teams included is more competitive. The issue of attracting more players or bringing the ruleset inline with other major tournaments was most-likely more of an afterthought, though that in itself would suggest the rule change was to promote more competitive play.
Posted on Sunday, 12th June 2011