Mmm, the thing though is that it looks bad if we yell at some and not others; that will lead to unnecessary flaming, and general bad taste. Most factions are fine; review of BPA, for example, will probably look something like "ok you have ship list which is good" "ok diplomacy is good" "in-game RP is good, as is forum RP" *insert further good review* "we're done here, nice job guys".
Most factions have enough people to hold their own against criticism, and the quantity and quality of such that they'll get will almost assuredly make the server a better place. And if it won't, then the individuals in question have a problem on their end, not the community's. (Senya-style "criticism" aside)