The point and what you said are valid, i've seen too many power supplies come from China which can only be called an electrical death trap and/or an EMC compliance nightmare.

Seriously, anyone can get power supplies that can kick out 6A, we don't need power supplies that will either throw out too much RFI or burn someones house to the ground, after all, anyone reselling these in Europe (and I assume other countries, but I wouldn't know) will be liable for it.