it's insensitive and awful and in bad taste and all that but again, it's just a costume. it's not like they went out and barbecued a real live baby. i don't think they deserve to get kicked out of their university for this.
i went to a halloween party the year of the 9/11 attacks and there was a guy dressed up as osama bin laden. talk about too soon. but again, it's offensive but just a fucking costume.