User blog comment:YourPrivateNightmare/Sejuani, the story, the problem, and the possible solution/@comment-5593561-20141105132115/@comment-5077844-20141105133801

there you summed it up.

And yes, the passive was meant for jungling mostly, but it really doesn't do much there, except for making her at least somewhat durable.

But yeah, the new jungle is gonna change things for her, we'll just ahve to see how.

The passive is still weak and deserves a buff at least