I have a feeling its clearly profitable for them because people don't know how to use oscilloscopes and understand the physics of them. If they did it would not be a viable service.
I think that this can happen to any business if enough people don't know whats going on. Like telecom where there is so many wrappers or layers and massive amounts of 'hacked systems' that its not approached from a physics standpoint anymore, more like a 'magic' standpoint. networks seem to fall victim to this fast because they are not specified right (always more users then expected). And there is like people in the way of stuff happening, actively, that need to be dealt with by a 'management authority' on a near constant basis.
I don't see the reason why this needs to happen to oscilloscopes, at all. It has to be a education fail. They started "glossing" over them in university and this is the result. If people know how to use them, the response to keysights 'offerings' here would be "gtfo, I don't need noob advise, I already learned this in college"
And it also IMO has to do with hidden specs, and fear mongering, so you are scared to make your own decision (simple physics interpretation) because you need someone to back you up with a paid reassurance service. To me that's being non-confident in your abilities. Also means your boss has no idea WTF hes doing. Wonderful indicator. Hit the books, jack