He makes some good points too.
Play almost anything from the 80's and it is a challenge. There was a macho competition between player and the game.
When I played the original games (in RTDC) for the first time in a decade or so I couldn't believe how hard I had tuned the original game. As Chris states this has softened a bit with each game but the play mechanic is still very demmanding.
Today's casual market is way simpler.
After many discussions we agreed to keep the original format (which the Zack's) mastered in the new levels.
After playing for a while I remembered how the game rides the edge of being just hard enough to make you want to come back until you clear a room.
All the same I do think there should be some softening here and there but the core shouldl be kept faithful to the original because a.) that is what the game is about and b.) no other game out there today is similar.
Sounds about right to me.