Sounds like someone is jealous because he could not cut it at a shop and got his *** canned //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif
This may come as a big surprise to you but cutting edge products (especally cart parts) do not always fit properly right out of the box so sometimes shops have to finagle a bit or just deal with it. My guess is he will learn probably not to deal with those companies again and move on to someone else..
I really don't see a reason for you to be running your mouth spewing garbage because you are still butthurt about being canned after you couldn't perform your job.