Soldering connectors on speaker wire?

[Tex]

but couldn't bad data turn into electrical harm if the address of the fixture you are trying to turn on changes to the "Bad" Circuit in the dimmers?

This is assuming you have a "Bad" circuit such as a student thought it would be cool to put 6 twofers on a connection and put load on all of those twofers.

If you have an intel properly powered by a constant circuit that has the same address as an overloaded dimmer, the console will simply send the same packet to both. Your intel may respond and your dimmer will trip a breaker. It's just a packet of information sent via low voltage, much like this post.
Now, if you're silly enough to plug an addressable fixture into an overloaded dimmer, all bets are off.