I'm pretty sure yeah. The AI will get stuck for a good 20 to 30 seconds, but if they aren't, they will lower the bridge just a mere 5 seconds later. It's happening like 80% of the time in my runs, it's a bit annoying.

For the elevator from 3-2 to 3-3, you can make Burns arrive faster by rushing to the elevator, going back a little then go back to the elevator like in this:

I've been trying to do the 3-3 skip, but I'm not sure if it's possible in the PC version. That sucks cause it's a pretty big skip, and one of the few timed cutscene that's left.

Also, do you guys have an idea why the guy lowering the bridge in the 3-2 part is sometimes getting stuck in the ship? It makes a considerable loss of time for no reason. (talking about this part