roger that and I do make the attempts. It just gets a little annoying to try and fail repeatedly. (sort of like repeating the same behavior over and over and expecting a different result) You know what they say about that. Flight service does have a utility to define a UOA (Usas Operating Area) for your part 107 flights for specific locations and times. A notam is not generated or required if there is no COA involved. I don't know how many manned pilots actually check that however.
But just to be clear - note that the FAA requirement that you posted above is, as it clearly states, for recreational (Part 101) flying, not Part 107 operations. There is no airport notification requirement for Part 107 even though, as @BigAl07 mentions, you might want to call as a courtesy.