Earlier quoted context omitted.
Yes, the title is very misleading. As for the op protesting its because Rails makes its easy to do those things then surely that should be reflected in the name of submission - 'Built in Rails functionality helps page load' I would also say the title is very presumptuous; claiming to make all pages load faster is an unachievable goal & clearly an exaggeration.
Is it? Do you have pages that don't include assets? No JavaScript? No CSS? No images? If so, then I think you're right. Otherwise, built-in Rails functionality will make all your pages faster.
Looking at http://www.alexa.com/topsites for example, which of those would you think Rails could make faster?