It's an interesting topic for debate if GNU should be blamed for
software defects under GPL ---- my personally feeling is yes (at least
to a certain degree), if GPL takes the credit automatically for GNU,
shoud it do with responsibilities as well.
This is incomprehensible nonsense, the GPL is a license, it cannot take
credit or responsibilities for anything!
If you acquire software from a third party, you acquire some guarantees
and warranties. If there are defects you have recourse to these
warranties.
If you acquire software with no warranty at all (as is the case for
many
but not all cases of acquiring software under the GPL), then there is
absolutely no issue of "blame". No warranty means no warranty!