Black Pedro already pointed this out, but I’d still like to supplement his answer. This topic came up for discussion fairly recently on the forums, and the verdict is that not only is it perfectly acceptable to pull Concord, it is entirely the point. They’re programmed that way.
Also I have to stress that there is no “gaming the system” here. For as long as I’ve been a part of EvE, there’s been a general rule of thumb that content and game mechanics are introduced, but never explained to the players. It’s up to the players to figure out the nuances of how they work. Things like pulling Concord are an intentional part of the programming. You can’t “game the system” for something they intentionally put in there for you to use in this express fashion.