TT didn't come along until DHP went under and a couple of other companies had already offered support for these V6 platforms. So I have to ask how much of TT was actually original and not ripped off of other peoples' (or companies') work that was already out there. Not that it really matters because I know some people, like DH, don't see anything wrong with that.
But that doesn't change the fact that TT is worthless without a 3rd party interface and bootloader that you'll need to reflash a PCM with that file you edited with TT in the first place.
There's no reason to bash companies that sell something to make a profit. DH has been bashing his whole e-life; but it hasn't gotten him anywhere.
Keep in mind that without companies like DHP, TC OBD2, HP Tuners, and some others, you wouldn't even have TT.