Why is there no tangent node?

Those decisions are based off of hour calculations to how our systems calculate information. Sometimes we have to use alternative methods because it interferes with UE4’s basic functions. For this instance, however, I believe since you have already found a work around this is a feature request.

I can enter one for you. I cannot guarantee that it will be implemented nor guarantee that it will be a feature inside the current engine.

Would you like me to do this?