I’d encourage you to read the actual text of the law and not just others’ interpretation. The sole proprietorship likely falls into one of the exception clauses or is likely using a platform.
I feel like you're not understanding; people aren't going to read the law, because the law is non-trivial and they don't feel comfortable doing that themselves instead of hiring a lawyer. But they can't afford to hire a lawyer, so instead they're going to block.
