I agree. The benefit of annuities vs bonds is all the dead bodies (nice phrase mathjack
). One of the reasons that annuities aren't too interesting to this crowd, is that the dead bodies don't really start to pile up until people hit their 70s.
I also have the same fear you do in in an economic storm taking out insurance companies.
It seems to me that one of most likely bubble we are going to have in the next decade is a bond bubble. The massive amount of liquidity injected into the world economy is certainly a key ingredient. Moreover the massive debt pile up by the developed economies gives government a strong incentive to increase inflation. Now obviously I and many other have been wrong about this for years, but I don't think the economic fundamentals have changed.
The big holders of bonds are insurance companies.
One of thing that struck me reading lots of books about the financial crisis is the pretty low sophistication of life insurance companies.
Michael Lewis and Aaron Sorkin were both pretty harsh on them. Consequently they got stuck holding lots of AA and AAA rated CDO, CDO^'2 CMO an all the other crazy products. Companies like Goldman Sach held very little before the prices collapsed and a few hedge funds made money (The Big Short). About the only group of investors that were less sophisticated than insurance companies were city and county treasurers. What saved insurance companies was their lack of leverage and the rise in the value of treasury and high grade corporate.
My other area of concern is that insurance are regulated at the state level. With 50 points of failure this really increases the risk of incompetence or bribery.