You're kidding, right? The USA annulment process HAS no integrity.
It is the LACK of integrity of the annulment process that has caused the present situation.
Going back to 50 annulments/year in the USA will probably not happen.
I bet you anything that the EO model will be the final solution, although there may be a "quickie annulment" transition period.
Wouldn't it be convenient if we could apply the same excuses used for obtaining annulments to also escape other contracts that prove burdensome over the long haul? How can anyone who possesses the ability to understand basic language (i.e. the wedding vows), and who is mentally capable of engaging in other contracts (e.g. car loan, library card, gym membership agreement) claim not to understand that they were agreeing to forge a bond that the Church (and the broader society) considers permanent? Obviously coercion or mental incompetence would be reasonable grounds, but some of the other excuses are simply rationalizations for revising history.