how can something be overhyped ?
They could promise things the game will not deliver but sofar they did not show any gameplay, that is the only concern.
Once they do I think everybody can judge for themselves. I really don't expect them to make a true "hardcoe" ( I'd rather say
purist) stealth game.
It will be an option just like in DX3 but I don't think the main focus. How long has it been that there was a real pure stealth game ? since Thief.
Sneak or DIE.
That is a hc stealth game. Not those...you have options....or even third person so you can cheat your way through encounters.