If rengar, Vi, Renekton, and the 50 other champs that have extremely similar abilites cannot "Q" towers, there is no reason Camille should be able to.
It is an unnecessary addition to her already overloaded kit.
Doing extra true damage to towers does not fit her role in the game, and is just more unnecessary power that shouldn't have been in the kit.
*I can already see her becoming the next yasuo. 4 years of the community asking for nerfs and we won't get them because she's fun to play.