The root cause of this is US (not me, I don't hold many stocks), the investors, stockholders and mutual fund owners.
While I would love to return to the good old days with full schematics, BOMs, assembly drawings and in some cases (way back) PCB trace drawings (part of old fashioned assembly drawings), it will NEVER happen.
Here are a few of the reasons, which are pretty easy to see:
Schematics - costs
* additional cost to produce publication ready documents
* additional cost of handling, managing, revision control, updates, notifications
* to many, this would be a blessing by themselves but for others - cost of producing full circuit descriptions and theory of operations
Schematics - dangers
* design can be cloned in a few hours of work
* one schematics are cloned, netlists will be generated and IF a sample of the product is available, PCB layouts cloned in hours (except or layer topology)
* IP (which I think is a double edge sword and do not like lawyers and courts) which may have cost tens of millions of dollars is now laid bare for all takers
Assemblies and BOMs
* thousands of man hours in component specification, searching, qualification is also laid bare for the taking
* when the components are known, what is not know is the reasons why they were used but WHO CARES. The fake copy now performs like the original as all mechanical, thermal, power dissipation, aging, etc. have been copied, the thieves not even knowing why.
All of the above costs and costs and costs which leads to the "us" (i.e. stockholder, etc.) part of the business. What do we want from our investments? Pretty simple and common:
* constant growth
* constant profits and dividends
* in many cases, the above can be achieved by any means possible, WHO CARES? certainly not most of the stockholders.
* your management will be out on the street if they can't dance to the stockholders beat, but not before bailing out with multi-million dollar umbrella clauses
Automate all you can, script all you can, deal with individual issues as little as possible, charge for anything you provide, etc. etc.
The last item there is why Keysight (certainly not alone and no where near the first to do so) now charges for support. In addition to your service agreement, if you want help after the sale, you better also purchase a support agreement, also by the year or other increment of coverage.
Sorry for somewhat of a rant. I think I see how we got to where we are and it's not going to change. Just cover your a$$ with protection for your purchase.
I still think Keysight is the best. I don't believe the lack of a support agreement will get you a phone disconnect, at least not yet. And as I mentioned earlier, Keysight has the most supportive and helpful people I've ever met in the business.