>>why are they imposing rules that make it necessary for tax preparers to take away some of that EIC money<<
Come on, you could ask the same of any tax benefit. How about net operating loss? Instead of paying taxes, a business owner can reinvest the profits in his own enterprise, perhaps even in the form of a salary to himself. That can generate refunds for years back and decades forward, except of course I'm going to charge for the forms.
A great deal of EIC fraud is actually Schedule C fraud, which is generally much easier to get away with than listing extra Social Security numbers. And I would guess that EIC is a relatively small part of Schedule C fraud. I have my own opinions about what are good or bad parts of our tax system, but professionally they are all good for me--it's what I do for a living. I give some price breaks, mostly if the client has very good records or has been loyal. But I don't refuse clients unless it's something beyond my skill. EIC is easy; even the due diligence questions are filled in automatically.
Just use an organizer and an engagement letter with a proper interview. IRS is not looking at YOU.