You see nothing inconsistent about that? IMHO, if you feel that toilet papering is not a capital crime, then it should not (in and of itself) be legitimate grounds for the application of deadly force.
The development of a justified use of deadly force at night to defend against criminal mischief is interesting and has its roots way back in the early days of Texas' development, but I think it's still a valid law. We don't know whether those trespassing and damaging property don't have a more malevolent intent, and waiting to find out could be deadly.