I don't blame Obama for not wanting to associate anyone in his administration with Thatcher's funeral. The Reagan era and its associates are an embarrassment given the groundwork they laid for future financial calamity.
She was a hawkish conservative who hedged most of England's economy on the financial sector, leading to its current economic problems. Not to mention all the lives she ruined with her drastic economic reforms.
Hopefully they bury her face down so she can see where she's going.