A puzzling new lawsuit . . .

Why is the Thomas More Law Center challenging the government's bailout of AIG?  It seems that AIG offers Shariah-compliant business products.  Aside from the sweeping implications of the suggestion that government support of AIG thereby violates the Establishment Clause, why exactly does government support of a business offering Shariah-complaint products, in the words of the complaint, send a message of "disfavor" and "hostility" toward Christianity and Judaism?  As Eugene Volokh comments, 

If someone were advancing this broad a view of the Establishment Clause in some other case -- or trying to narrow the argument by limiting it only to certain Christian denominations, as the Complaint is trying to narrow the argument by stressing the supposed vices of Islam -- I would think that the Thomas More Law Center would and should protest. It's too bad that it's backing this argument here.