As far as I know, Pitbull is still using an FF printer. He was working with resin last year but said he was still fooling with the process, and that stuff was too brittle. With the "tough" resins that are out now, some people are using 3 or 4 mixed together to produce stuff like parts for race cars. That suggests to me that it might be time for other parts to be successful.
The link where you can buy them is certainly the same as the old thingiverse design, I wonder if it is the person who designed them, or just some jerk that stole the design. If the former, I wouldn't have a problem paying for the design. If the later there is no way, I've had free designs of stuff stolen and sold from China, not going to support that kind of process.
I've seen the video of the Pitbull tear down, and possibly a few other videos where the baffles were broken out, hence the resistance to FF and possible layer problems.