True, it's a different philosophy. Having the added styling in the box like Bootstrap works for people who are good with the visual look of it out of the box. With Foundation, it's supposed to look like a wireframe to allow for your visual identity be easily laid on top of, a truly custom design.
Example:
Bootstrap Nav Bar Link
`.navbar-default .navbar-nav>.active>a`
Foundation TopBar Link
`.menu > li.active > a`
Foundation usually uses less selectors to override, lower specificity.
Example: Bootstrap Nav Bar Link `.navbar-default .navbar-nav>.active>a` Foundation TopBar Link `.menu > li.active > a`
Foundation usually uses less selectors to override, lower specificity.