I don't think it's an unreasonable inference, though.

It's not unreasonable. But because you do have to infer it I think it weakens the case. There's never even the slightest suggestion that something will happen to her, the viewer has to make it up entirely on his or her own.

I think a stronger case can be made that nothing happens to her, especially given Don's apparently ability to do whatever the hell he wanted with impunity for years until McGowan finally and very temporarily put a stop to it.