I think it's safe to say that a developer that doesn't do EA is finacially stable. In general that's not true the other way round.
This. A developer with financial problems will surely release into EA to have a chance of getting cashflow and *perhaps* the means to finish the game. A developer with secure funding will probably still release into EA as a means of getting feedback and expand the number of "beta testers". I would say it's often pretty obvious which one is which, since many games that go into EA are nowhere close to feature complete, and I suspect that if a developer has the financial stability to wait until it is they will. Otherwise they risk getting much less sales in the end because of blowback from disappointed buyers. That's my take anyway.