I don't see anything in the OP's comment that suggested a presumption of automatic female incompetence.

Design in many realms is not trivial work. At Google, at present, it is by no means trivial work. But one should bear in mind that consensus converges on Google's initial success as being predicated almost exclusively on relevance of results far more than any other factor.

Google destroyed Inktomi and AltaVista with a better search engine, not with a better interface.