MAP Sensor and Reversion from EGR

In the "Load Calculation" video under the tuning modules, it says the MAP sensor is not affected by larger camshaft overlap causing intake charge dilution. I don't understand why, since the MAP is monitors manifold pressure, seems like EGR gases going back into the intake track on overlap would cause a false pressure reading at low RPM?

Can this be explained?

OK, so I think i may have figured out the answer to my own question. Now I am a Harley Davidson mechanic, if I remember correctly now that I am thinking about it, I believe the MAP sensor is not a continuous reading sensor, and it only takes a reading at a certain crankshaft position. If this is the case, I can see why the EGR will not influence the reading, if reading is taken at a place where EGR gases are not entering the intake manifold.

Any truth to this??

If I understand the question, I may not, it is factored into the calculations.

It may help if you realise EGR and reversion are actually different things, even if both can dilute the charge's oxygen percentage.