In the case of the 87V, I doubt it's of any concern for the typical technician.
But still, it's an issue that could be addressed in the flagship meter of supposedly the best brand in the world.
You video shows that the 87V can measure the signal correctly, it's a problem with firmware/autoranging.
In the case the the Brymen BM78x series, these problems were addressed with the firmware.
Within days...
I really don't know much about Fluke or the 87V. It may use a masked part with some minimum buy. They could be sitting on a last time buy. They may also be out of code space. It may not even be something that could be addressed in firmware. For that matter, they may not even have the source or the talent to roll a changes if they wanted. If they could change it, they may not have the resources to qualify it. We are talking about a very old product. Contrast that with a brand new product where the engineers are fully engaged in its development. I would fully expect the latter to be able to respond much faster.
Consider also that when I started to look at the Brymen 78x series, it was not available for purchase. At this stage I suspect Brymen considered their risk much lower than say changing one of their more mature products. I would not be surprised if my review didn't delay the their release date as unlike Dave, I arrived very late to the party.
While I grabbed the 87V to make the point that this kind of problem is not unique to the Brymen 78x series, it's certainly not unique to the Fluke 87V. I've shown similar problems with other brands as well. I suspect you don't hear to much about it as the electricians are not working with such signals. I had someone ask me once why I would ever need to look at something faster than 60Hz. That's their world and the 87V is a good fit for some of them. For those of us working outside that world, we have products like the 78x.