While a couple of modders have done this for themselves and for the vanilla game, for mods that add races (and presumably new super weapons) will not be affected by such a mini mod. You'd need one specifically designed for those other mods.

That said I don't think that all AIs will build superweapons, aggressive AI for example probably won't build them and instead just spend the money on ships to attack you with.

Further, I advise that the Devs add custom map sharing to Sins of a Solar Empire: Rebellion.

The TEC cannon isn't much of an issue if you have the proper starbases in play with the standard upgrades on it.  It can be a hassle if you don't.

The Advent cannon is a nuisance at best.  Culture rarely works as a way to win unless you go hardcore with the damn thing and build culture structures out the ass.

The Vasari cannon is the one I've had more issues with, especially, when they jump in a fleet after you get hit.  To me, that's the most effect one out of all of it.