Trying to avoid built up areas?
The dash cam video does show the plane flying from NW to SE in wings level. The PIC had already completed part of a turn (his direction was no longer following the RWY centreline by a long way), and by the point the dash cam shows, the wings were level. If you are going to crash, better to be wings level.
When you look at Google maps, the options off the end of RWY 17 are houses.
Perhaps the PIC was turning enough to avoid the houses and was trying to make it to open space back on the airfield, but for whatever reason did not have performance, hence having wings level to get any performance that was there.
I guess we will never know where he was hoping to put down, if they hadn't hit spotlight the plane might have made it onto the Tullamarine Freeway.
Very bad place to be in a twin (or any a/c) when you aren't getting OEI performance.
We'll let the investigators do their work.
RIP all