I am glad to hear that the game play suggestions were already being looked at. Nice!
I understand not being able to afford full QA. Having something that sends the error logs to you automatically may be a good idea so you can see what happens the most.
The sheer number of edge cases is also why I suggest handling them more gracefully. If you can get the errors wothout relying on showing them to the player, then handing them better can make them less disruptive.
All in all, great game. I want to see where it goes.