User blog comment:Typhron/Karma's Problems./@comment-7460908-20130827124358/@comment-60764-20130827150252

That is true. But Karma's shield is on a lowerdown and lasts a bit longer than Janna's. Janna and Karma's kits each offered something the other didn't and the weaker shield was just a tradeoff to a spammable heal and/or a slow. In the long run, though, Janna did have more than old Karma (which is why people used and still use Janna over Karma). It's not too odd considering these things, so the shield being what it is isn't/wasn't that much of complaint.

At least, not compared to Click the Lantern or "I have no ult and I must scream".