Maybe they can make it "type agnostic" (just like aghanim's scepter). Right now, it's kinda geared towards INT heroes.
True it is skewed towards Int heroes, I believe it is more situational than belonging to any one attribute type. The fact that it has the +40 dmg is kinda of making it more agnostic atm anyway.
I just don't think that this late game item should suit every hero. Yes widen the usage (as OP encourages), but making it a viable option for the majority of the heroes (as above post implies) seems unneeded.