As an original Deus Ex player I really enjoyed the game and setting, but the endings felt so lazy and dumb to me.
I had the same reaction and I couldn’t believe it. Of the original, the “easiest” ending made sense, and the other two were obvious strategic encounters with very different paths of engagement.
I couldn’t bring myself to finish DXHRDC because I was certain that even after the additional strategies were added to the bossfights they wouldn’t bother with endings. Maybe I’ll go through it one day to find out.