After reading through the other thread, I see you got pretty much the same responses I gave you. And multiple requests for a data log file. Appears to me that "ASE doc" gave you excellent guidance and told you how to capture the data using your Snap On Solus Edge. I don't know anything about operating that device. Did you review the operating manual for it to see how to produce a log file? It may be as simple as downloading software from the Snap On website.
If you insist on making videos, at least try to get the camera in focus so the numbers can be easily read. I can see maybe 30% of the numbers clear enough to make them out, but then every time I look for a number I need next, it's too blurry to read.
I don't think the info they gave you on the EGR was too meaningful. When the EGR opens the flow into the cylinder is exhaust gas, not "air". If it's flowing exhaust, it displaces air and reduces the air flow through the MAF. MAF, if accurate, tells the ECM there is less air flow, ECM reduces fuel flow to match. Let's say there's a leak in the EGR system, and the engine is pulling in air through the leak. MAF reading drops, fuel is reduced, engine runs lean, BLM's increase based on O2 sensor reading. But... EGR is typically not send at idle, or above 3,500 RPM, or at wide open throttle. It is only used at part throttle, steady state cruise conditions as you pointed out.
What caught my eye in the screen shots is the diverted valve for the AIR system. The 4th Gens don't have that. AIR flows only into the exhaust manifolds, never into the cat. And the 4th Gen AIR pump is electric, so it can run for a couple minutes on start to heat up the cat, and then shuts off. Your diverted valve allows the AIR to flow into the exhaust manifolds for startup, then switches the AIR flow to the cat for closed loop. What if you have the connections reversed, and you are flowing air into the exhaust manifolds. O2 is going to read lean and BLM's are going to elevate. Faster the engine turns the faster the belt driven pump turns and the more air gets dumped into into the exhaust. Could explain rising BLM'S at WOT. Wouldn't explain runnin lean.