It is not oil degrading that is the issue, it is all the contaminates that get in the oil over time that eat away at engine seals and parts..
I would consider additional contaminate concentrations to fall within the definition of "oil degradation". After all, we go the the store to buy X number of quarts of oil, not X - Y quarts of oil with Y quarts of additive, right?
Do you agree that running up a couple thousand "too many" highway miles within the span of one week or less would not be the same as taking 6 months to run them up, all in trips of 3 miles or less around town?
'08 GT coupe, 5M, wheels, tires, pads, fluid, a few suspension mods . . . still almost stock height
'19 WRX, 6M (hers)
'01 Maxima 20AE, 5M (spare, winter driver)