A good start would be to require by law from Google and similar other companies to actually give a reason for an account suspension, having to potentially put a real human on the line ought to bring them pause and ensure there are less frivolous suspensions.
That said, the real answer is, of course, to migrate to a domain name you do own and a provider that's not known for suspending accounts willy-nilly, I'd stop just short of being your own provider, given how difficult it may be to get things right.