I'm inclined to agree with you only because what's the point of reinventing the wheel? We have a regulatory regime—and again I'm picking on the Law Society of Upper Canada—that's been in existence for something in excess of 100 years. It has adjusted and it deals with a lot of the problems that you're alluding to, such as getting retainers or prepaying of fees or failure to file within timelines, or being insufficiently trained or inadequately insured. All of that stuff is governed by the rules and regulations of the law society as it applies to paralegals.
I can't, intellectually at least, conceive of why that wouldn't apply to the people you are talking about.