Well, not completely. I mean, obviously you can’t really pull objects as you could in HL1, but you can still pick up and move things out of the way. For instance, the room that implements pulling in HL1 has a ‘path’ outlined heavy boxes stacked two high, then there’s the single box which you have to pull out, then walk through the path. That could be modified so you have to pick up and move a box out of a small opening to crawl through.
The are could also be merged with the following area (crowbar), and maybe have the vent in that one be covered (or filled) with a crate or two that has to be moved out of the way.
Buuuut those are with little thought towards pros/cons/practicality/etc.