Pipeworks was the company doing Console development, and as such, are the authors of the original Unity client. As far as I know, their involvement ceased at the time IP2 took over the Console dev responsibilities.
As @Lyya has mentioned, Pipeworks was the initial developer of the Console version of the game. Since @Alpheon and I took over in June last year, and brought all the development in-house. Pipeworks did a great job on the initial console version of the game, and are now working on other cool projects. Since we have now unified all the platforms with Unity, It’s only fair to give credit where credit is due. We can assure you there is no conspiracy there.