Sure. And they did say those things. And the sites that genuinely cared about user needs, both past and present? They did the 'inefficient' thing. They optimized for whatever was best-of-breed at the time (IE, FBConnect) for ease of use, then found a way to also cater to whatever came up next. Many headaches were caused by IE/Firefox incompatibility, but Firefox is still gaining marketshare today.