From Stardock's perspective, the main problem with Beta testers using console commands is that it defeats their ability to investigate your saved games. So any bugs you find in such a game are basically useless to them. They can't reproduce them, they can't analyze your reports, and they can't even be sure that it's a game bug.
You can have fun with the console commands as much as you want, but you're on your own. Basically, you opt out of the Beta for that one game, because whatever you find, you can't report it as a real Beta bug.
With that in mind, go ahead and have fun. Cheating up a bunch of enemy fleets might indeed be the fastest way to test different weapon mixes in Combat Viewer.