Lots of good points. I never became even remotely disenfranchised with the game, but speaking with those who did at the recent Outlaw tourney mostly revealed the frustration with rulings, like Mugging, Nathan Shane, Jia Mein exp, etc. The recent announcement from AEG didn't seem to affect them - they felt the damage had already been done and it was too late to fix things now.
Overall, considering how insanely complicated it is to create a fun, well balanced card game, I think they did a lot really well. The Deadlands setting is not something most people have heard of or even care about, so that was always an uphill battle, but the fact that poker is integrated into the game can help to draw new people in. That's usually what I focus on during my 30-second-elevator-speech explanation of the game. Aspects of chess + poker + some familiar aspects of magic the gathering can really get people excited.
And it still can! The game is at a very awesome spot, balance wise, and considering prices for getting into the game will likely drop quite a bit (already saw that sale for 40% off all doomtown products) it's a great time for new folks to get into the game.