No... you rushed the Act change flag.
The first thing that happens next is that your party runs into level 5-7 mobs and wipes constantly. As you demonstrated by sacrificing a single party member to the bulette.
Here's a tip: open up the console, type warp X/Y and touch the flag zone. Well done you "beat" the content in 15 seconds. That's how useful you have been to EA.
Here is a tip: saying here is a tip makes you sound like a jerk. 😂
I’m not into speed running myself, but I’m not going to s—- on people who do. For speed runners the fun is finding new ways to break the game. There is no cause to be such a sour pus.