I think Asuka's booking is okay. In the two matches Asuka has had with Nia there was a draw with Asuka being dominant in the end, and a roll up win. We haven't gotten a straight decisive win because they obviously want to prolong the feud to at least another match (probably a gimmick match). If Asuka got a straight win, the feud would be over and she would move on to another contender. The fact that Asuka hasn't actually lost despite they attemting to prolong the feud actually shows they are trying to protect her a bit.