If you want to fix it, you have to look at all angles. If you have measured and replaced everything else you noted above it's all about the angles. So whoever said ignore them is not someone interested in figuring out your problem.
As I noted above - pinion angle when we normally discuss it pertains to the relationship of the angles "up" and "down" of the output shaft (trans) and the pinion gear (axle). Your sheet shows that up and down difference and how to fix with a shim (which is the correct approach).
BUT
There can is also a "side-to-side" relationship that is the same deal. If the transmission's output shaft is not pointed really, really close to exactly straight back at the pinion, there is no way to adjust the pinion to offset that and remove the vibration. The solution in that case is to move the engine via the brackets and mounts to remove that side-to-side misalignment. My comment above about the E body was just that: the engine sat higher on one side, and because the mounting points are not inline with the crank's centerline, that inequality pushed the tailshaft's direction sideways a little. Only a few degrees. That was enough to develop the harmonic he felt. That was found after pulling down the transmission 2-3 times, aligning the bell housing, replacing mounts, having the driveshaft balanced ad rebalanced, U joints replaced, etc etc etc.