I doubt that titanic bronze is a " i win button" in any way, it doesn't really work like that in the DF, even the swords have angels riding along to provide what help they are allowed and the Spear did not make Dresden undefeatable.
I read it more like it helps channel, shape and perhaps boost ones will, the same will wizards use when using magic.
I find it more likely and interesting to have Dresden incorporate the bronze in his gear, the still missing should bracelet comes to mind as a clear candidate.
Up untill changes we have been told that wizards are the most dangerous when they are prepared, and we have been shown how Dresden use and tinker with his gear. Since Ghost Story we've been told how Dresden hasn't had the time or opportunity to recreate his arsenal and how he misses it.
Titanic bronze is lika a super conductor for magic Eithniu plugged it in to her own metaphysical nuclear power plant and used it for her own personal maglev train, I long to see Dresden build a supercomputer that he can plug into his own wall socket.