I totally agree. It is only my belief and a gut feeling ,so to speak, but I do not believe that if $10,000 is "guaranteed", the bank client can be confident about getting it in case of the bank failure.
Just look at the recent situation- when they "guaranteed" that everyone would get "compensation" payment form the government for the deposits they lost on soviet bank deposits! (This was promised by Timoshenko in the begining of 2008).
Anyone seen the huge crazy lines in the SBERBANK to get those?
Well guess what- it was on first come first serve basis- they "ran out of money" and I know SO MANY people who were entitled to those compensations and never got any. The explanation given at the bank -RAN OUT OF MONEY. But the government promised everyone will be compensated. Mind you ,that "compensation" was limited to $ 200 or $500 and not $10, 000.
I realize these two scenarios might not be quite the same but you get the idea. If they could not pay out the promised and "guaranteed' $200 then one has to be NAIVE (like me)

to believe they will get their $ 10, 000.
And again if they don't, who dot hey complain to? What do you do, sue the government or your bank???
This insurance idea is really just something to try to calm nervous depositors so there won't be a run on the banks. There is no real intent that the national government will have to ever pay out anything.