There are pitfalls: There will be an anticipation when the term comes up. Each presidential term will have at least two nominations. But I think it's better than the alternative.
The "alternative" being the present status quo? Am I reading you right?
If i am, then I definitely agree. Sure there are pitfalls to be expected. Pitfalls have befallen the Constitution, but the people found a way to rally back and set things right in the long run. Meanwhile, we know what the status quo consists of. It is no friend to constitutional order, or any other kind of order that isn't the ideological project of a lunatic ideologue.
I'd be glad to see the status quo shaken up a bit -- so as to leave just a little more freedom in the system for thee and me and our company -- i.e., our fellow human beings. The people -- not the "high priests" -- will figure out what's important for ourselves, our families, our communities, our nation in the long run. That was the expectation of the Framers, and what the Constitution was designed to promote.
At least that would be my expectation.
Thank you so much for a clear-sighted and well-reasoned post.