Gabe can talk alot of crap can't he.
Source engine isnt very interactive, its just heavily prescripted in some way.
For example, when I first played HL2, a picked up a wooden box and put it in a fire... It didn't catch on fire.
I think the clip of shooting the fireball at the wooden planks to make the statue fall makes the game look cheap and lame. Anyone?
The ice is rad, could do with a slipping animation though.