Have you/your child heard Eva Olsson speak? How unsuitable for small children was it...?

I don't think it's an opportunity that should be ped up. The closest I've ever gotten to hearing her speak was Unlocking the Doors, that's probably the closest my children will get to it as well. 3 may be a little young to understand the full message or comprehend the details, but I don't think that any of it would be traumatic, especially if you talk to her about it.