If he intended to scam everyone from the start it's not too difficult to explain his actions. Up until that analysis of the disassembly, I was willing to believe he just mismanaged the project, but I don't think that's a particularly likely scenario now.
If you raise $80k+ with a scam, presumably you want to keep the money. And the only way to do that is to cash out and flee the country... or convince people that you tried, failed, and spent it all, and then hope that most people aren't going to pursue things any further. To that end, dragging "development" on as long as possible is very useful: more backers lose interest and write off their investment, and the ones that stick are placated with increasingly less frequent updates. Eventually you want to stop selling preorders too, because people who've recently given you money will have a much easier time issuing chargebacks.
The fact that so many people still believe that the game wasn't a scam shows that this strategy would work. In terms of effort, it is much, much easier to rig some screenshots and videos, write some forum posts, and release a broken map editor than it is to actually build a working game. Besides insulating you from legal action and chargebacks, it's also less harmful to your reputation: if you make it obvious that you've scammed everyone out of their money, you're going to have dozens of gaming websites writing articles with your name posted front and center calling you a scammer.
Consider everything we've seen of TWS. Do the more recent updates look like the result of 2+ years of steady development?