Hmm. This could be a problem with the reader.
This Tecplot reader is one of those in the VisitBridge, which means that the reader comes from the VisIt developer team. I just tried loading your data in the most recent version of VisIt (3.3.2) and got the same behavior. So, if it is an issue with the reader, it would at best take a long time for the fix to make it to ParaView. (See for example Issue with tecplot binary cell centered data. for a different problem with the same reader.)
That said, I took another look at your data, and it appears that the coordinates are repeated in the x_D, y_D and z_D fields, and the z_D field is actually correct. So, you can use the Calculator filter to fix the coordinates. Turn on the Coordinate Results checkbox and set the expression to coords + z_D*kHat.
After you fix the coordinates, you may need to change to 3D interaction in the view. Click the 2D in the small toolbar over the render view to change it to 3D.
Here is a state file that enacts this fix: fixed-coordinates.pvsm (299.5 KB)