I think the benefit of the SF50 over the TBM... There are a few, some already mentioned.
1. The Cirrus life. The Cirrus community like many type clubs is a vibrant community, and a lot of those guys gals want to move up but don't want to leave the Cirrus community. Some of us previous SR2X drivers went to different airframes for more capability, but still identify with that community.
2. The parachute. While I don't fully get this in a turbine class aircraft, many in the COPA community have convinced themselves that any plane without a chute is just not safe. I have seen that transformation many times, it is what it is. I feel perfectly comfortable without a chute in a whole variety of planes, but that chute sells to many pilots and spouses. I don't thing I will see a chute pull in an SF50 in my flying career, but maybe I am wrong. Type rated pilots flying turbines, just aren't going to get into the situations that we see with the piston SR2X, IMHO.
3. Bigger, roomier, cabin, seems to appeal to some. I know my wife would not like the bigger windows, and she does not like all forward facing seats, that is like a mini-van. That was the primary reason she vetoed the Eclipse. Club seating is more conducive to family interaction, and makes better use of limited space. People coming from a SR2X are used to being in that arrangement, so they won't notice the mini-bus feel.
4. 2 mil cheaper, that is a biggie, and you can't compare new to used for a variety of reasons.
5. Significantly quieter. With noise cancelling headsets, a minor concern for many, but a headset free cabin has some appeal.
6. Simpler pilot interface. FADEC, single lever, much fewer buttons levers and simpler emergency procedures. The TBM is a much more complex plane.
7. Ramp appeal. Pretty cool plane, will definitely draw a crowd.
8. You can say that you own a jet. For others that may be a liability.
9. Baggage capacity. A lot of external storage on the jet. Good for big families.
There are also plenty of reasons one may choose a TBM.