I think all the topics you touched on are correct to one degree or another, but when tweaking the FM, it's important not to go overboard on the effects. I mentioned this on another forum, but it's important to keep in mind that this doesn't have much more horsepower than your Cessna, and with not a ton more prop inertia. While the airframe is lighter and thus more susceptible to the effects of torque, P-factor, etc, it's not going to be a "holy crap" wild ride. Its a gentleman's aerobatic aircraft.
The absence of accelerated slipstream on the tail control surfaces was the first thing I noticed, but didn't kill the experience for me. I'm excited for any tweaks they make, but on first impressions, it passed the sniff test to me.