I have kept my eye on this thread, since (in my role as "SkyDemon Guy") we got a lot of complaints from our users at a recent flying event about such NOTAMs...
Some have been questioning whether our narrow route briefing algorithms were faulty (NO!) but a great many pilots were reporting that due to these NOTAMs clogging up the feed, they were overshadowing other NOTAMs which do actually have value, and that is something that we want to nip in the bud.
I have been chatting with various individuals within decision making organisations to suggest a simple solution to this, and while I don't agree with the reasoning behind my solution not being implemented, it is important to note that these decision makers are actually engaging with the problem.
Interestingly it sounds like once this type of NOTAM gets pushed to the AIP, there will be a couple of other types that will start to pop up... Hopefully these can be wrestled out of our NOTAM feeds in a similar way...