I wonder if you might want to ask more than TBM pilot to evaluate ground handling. While I understand your position that a TBM pilot has given the thumbs up... that is still only one pilot's opinion. Given the amount of user comments on the topic, you might want to find a second opinion to verify and provide users with a wider assurance that more than one TBM pilot confirms ground behavior. I've been using flight simulators for over 35 years (Yes... since Bruce Artwick's version for the Commodore 64), and have 430 hours of real flight time in aircraft ranging from Cessna 152s and 182s, Piper Archers and Arrows, and a Bonanza A36. This aircraft is pretty much at the top of the list in terms of ground handling difficulties.
I've now taken off and landed your TBM at least a two dozen times... only the last 4 have remained on the runway during both takeoff and landing. During take off, if I keep torque below 60% until airborne, I'm able to control the excessive yaw instability. Once airborne, I can apply power to 90% torque for a normal departure. Landings are slightly more stable, so long as prop reverse is never used and touchdown occurs slightly above stall speed.