A possible for certain items to roll +1 skill not from your class

Just would throw out a thought that maybe it could be very cool to have some certain item/rare affix or whatever that was able to roll +1 to a skill and not require you to already have points in that skill. It could be so that it could only roll active skills = no passives.

Basically for example enabling you to get some sort of other ability, like for example you could get nullification on another character, or shadow strike on a class that didn’t have a mobility build.

How is this any different from item / component skills that are already implemented?

Chaos strike from Riftstones is basically the same as Shadow Strike from the Nightblade tree…

For example +1 to OFF on a Witchblade would allow you to use a level 1 OFF.