Thanks, Peter, for the citation.
I fully support the "spouse as automatic beneficiary unless spouse waives" law/concept, but when you see the actual statutory language and the whole QJSA/QPSA stuff, with numerous amendments, one may be tempted to agree with Mr. Bumble, "The law is a ass..."
As a layman, seems like it could have been made more sensible and streamlined. For example, it never made any sense to me why a profit sharing plan should be treated differently, for these purposes, than a pension plan.
On the other hand, if ERISA, the IRC, and all associated regulations/guidance were as simple as they ought to be, we'd all be out selling matchsticks or something, so I should keep my yap shut and not gripe!