Ugh, I hate getting involved in this type of discussions but, aside from wanting to say that no one has been hanged on trees solely for their exotic looks, I see a couple of 'problems' here:
1. It's symbolism that one specific culture is sensitive to. The way African-Americans were depicted for years in popular culture a white population founded, consumed and used as a vehicle to make fun or justify racist assumptions. The image may not say anything to Sicilians (or me for that matter), yet the brand is not for Sicilians only, it is marketed to American consumers, in a probably wrong scale of comparison, this is as stupid as making yet another collection of gimmicks with a 'spirituality' theme and adding a couple of swastikas and sell it in Western countries. You don't do that, even if you're deeply ignorant, you probably have a couple of American employees that help your business get across that may hint at the potential offense.
2. The fact that a figure with a traditional way of dressing and highlighted features is offensive is another issue on its own that speaks for perhaps a problematic strategy to eradicate racism in the United States. I'm no one to criticise, not an expert in US history, I know no one except for the US and Brazil have faced this challenge and.. it's 9 am, don't shoot, I just think that, when you have government papers that ask people to check their race for whatever reason (stats, ethical work, you name it), perhaps it would be a good idea to be equally "open" in culture assimilation and consider integrating and fomenting familiarization on the appearance and attire of that entire diverse group your own identity is composed from, helping your population feel like it belongs to them even if they don't necessarily share racial background, it isn't just 'heritage' of 'that' black community, or 'white' people tradition, it happened in the US, so it's US heritage, whether it was used for vile purposes in the past is another issue but I feel it's a longer struggle to pretend such imagery never happened or that it's 'untouchable' imagery no one should get near of ever again in order to overcome certain issues instead of just embracing it. It is a stereotype, but stereotypes are not only synonyms of discrimination and in traditional dressing, they frequently have elements of an existing lifestyle that's worth knowing.. and it's important to get past the fact that the stereotype did not make the history but policies supported at times by a population that did not feel responsible or related to a group.. which brings me back to the 'what racial group do you belong to?' question (an entire debate for another day). I know there's also the BIG fact that one's a minority and the other doesn't, which turns my suggestion into a problem, but I still think it's an approach to culture integration that's healthier instead of exclusion of elements, highlighting differences, taboo instead of direct talk, popularizing a simplistic version of 'culture appropriation', feeling like taking elements traditional of another race is politically incorrect, etc. Finally I'm not up for ridiculing but this is where the government intervenes, on managing such 'openness', because, open topic or taboo, guess what, it still gets ridiculed! and the ridicule only makes it awkward enough not to want to discuss it again, which ends up in more distance among groups.