Well what about puzzle games? Action games like Zelda? Some older 3rd person shoot-em-ups have been isometric, even the new game Shadowgrounds. Diablo is isometric and is more of a hack-n-slash. Sim games are mostly isometric as well...theres even some sidescrollers that use this view....shall I go on?
I'm not trying to pry, but just to make a point that because a game uses a certain view doesn't mean its a certain genre. We need more games to prove this point further, so Daemonica is welcome.