Except for the fact that they regenerate CS in the field while other realms must travel to their capital.
This is not explicitly correct.
They do have a means of gaining strength, but it is not simply: "Stand around and get stronger". There are legitimate game mechanics which limit the Zuma behind this. All of the research I and others have done into the matter suggest this.
Lack of knowledge of the specifics doesn't eliminate the fact that the Zuma are in fact limited.
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Another note: Do you really think it is likely that Kabrinskia would start a 3v1 war (which they did) without knowing they would have the support of the Zuma? The whole point from the beginning was that the Zuma would help Kabrinskia in the fight if more than just Terran fought. If you make the assertion that the Zuma are stagnating the war, you are ignoring the entire piece of evidence that this war would never have been started if it weren't for the Zuma support.
