With all due respect, while I appreciate the concern for safety, the last thing people generally, or this country in particular, needs is government officials 'outlawing' legitimate products to 'protect' us from ourselves.
The fact a logsplitter manufacturer (some would say the premier logsplitter manufacturer) makes such a product commercially available is evidence of a need or want. When used properly the product is no more more dangerous than say an automobile, the commercial availability of which we all pretty much take for granted.
Having some commissar over in DC dictating what I can or can't have in the way of tools just ain't my ideal scene.
The incident with your brother is unfortunate - thankfully he was not hurt due to the fact that you were paying attention and observing good safety practices (Look, don't just listen) Hopefully he has learned something from that experience - namely that one should NEVER load a log splitter by holding the log on the ends - you always hold it on the sides when placing it into/on the splitter.