Personally I wouldn't allow it because revivify just stops the body from decaying. In my world it's difficult to raise dead, revivify works because the spirit has not moved on yet. Once the soul has started it's journey, it takes a lot to get it back. I guess if it ever came up I'd have to make an official ruling since it also affects raise dead.
I've always viewed it as extending the Raise Dead spell because it specifically states that it doesn't restore lost limbs. If too much time has gone by, there's too much decomposition of the body to restore life.