"A bomb's a bad choice for close-range combat."
Well, duh!
Deus Ex was/is one of the best games I've ever played, but it still has some funny bugs and stupid logic.
Regarding DE:HR.
I personally ain't worried that game is simplified or otherwise dumbed down.
My local magazine (finnish Pelit) gave it 91pts, recommandation and said that it's worthy sequl/prequel for the original. Only minor problems they found worth mentioning were the slightly stiff facial animations and simple boss fights.
They gave the original Deus Ex the same 91pts, recommendation and declared it as classic right away. Nowadays they consider original Deus Ex as one of the best games ever made.