Invis is also tied to see invis, so you cannot give other classes see invis without making them invisible and when invis breaks you lose the see invis portion as well...I don't know who didn't QA that idea but I am shocked its taken this long for them not to break that apart and set it back to two different spells like it used to be... EDIT: This was fixed hallelujah
As far as I can tell I dont think any of the devs really pay attention to the wiz class or its problems with spell dmg scaling through the levels.
Its astonishing that a level 12 enchanter can nuke for twice as much as a level 12 wizard. And thats just the tip of the iceberg. It was one of the first classes to be reworked and I have never seen a dev respond to any of the feedback thats ever been posted about the class on here or in discord. Sooo I guess we just sit around and wait and see?
If you're rolling wiz at EA, you're going to have to hold your breath and hope they fix the class someday.