That is how Shadowstep worked before. But in patch 2.3 they changed it to affect all damage abilities instead of only those three.
Patch 2.0 Shadowstep
Patch 2.3 Shadowstep
On this server there are almost no active BGs until about 5pm server time. A fix for this would be to only have WSG until 5pm. People are more eager to play a BG when it's WSG. I've seen this work on other servers, they have only WSG till 5pm and then the rotation continues as normal.
5 seconds after BG starts I get reported by 3 people. I was playing normally and they report me for nothing. I think they are friends and they are working together to get me kicked out of the battleground. Please do something about this because they abuse the system.