Sorry to put a dampener on this.
Does the bluefin superchip involve opening the ECU, and replacing the original chip? I know superchip make a play about it being undetectable. But I do know from a touareg forum when vw detected that the ecu had been tampered with because the seal wasn't original. It's another story of course if the ecu box only has a clip fastener. There are companies out there who can remap thro' the diagnostic port. Here it would be completely undetectable, unless the garage puts the car on a rolling road. You also need to think of warranty and insurance issues. I personally think the 2.0 T already has a good balance of performance and economy.
I agree with your view on the 2.0T balance. If you look at the power on the 3.2, it is around 250 bhp (slightly higher than the chipped version)
This gives a half second advantage in the 0-60 sprint !!!
As it is, I find the car struggles for grip in the TL Grand Prix and in the wet is even worse.
If the EOS had 4WD then it may be worth it, but that has been well discussed on other forums.
I would like extra power sure, but as you rightly point out
the penalties are hardly worth it.