While I agree with the article, the reducing of the number of technical writers due to the belief that their absence can be compensated by AI is just the most recent step of a continuous process of degradation of the technical documentation that has characterized the last 3 decades.
During the nineties of the last century I was still naive enough to believe that the great improvements in technology, i.e. the widespread availability of powerful word processors and the availability of the Internet for extremely cheap distribution will lead to an improvement in the quality of technical documentation and to easy access to it for everybody.
The reverse has happened, the quality of the technical documentation has become worse and worse, with very rare exceptions, and the access to much of what has remained has become very restricted, either by requiring NDAs or by requiring very high prices (e.g. big annual fees for membership to some industry standards organization).
A likely explanation for the worse and worse technical documentation is a reduction in the number of professional technical writers.
It is very obvious that the current management of most big companies does not understand at all the value of competent technical writers and of good product documentation; not only for their customers and potential customers, but also for their internal R&D teams or customer support teams.
I have worked for several decades at many companies, very big and very small, on several continents, but, unfortunately only at one of them the importance of technical documentation was well understood by the management, therefore the hardware and software developers had an adequate amount of time planned for writing documentation in their schedules for product development. Despite the fact that the project schedules at that company appeared to allocate much more time for "non-productive tasks" like documentation, than in other places, in reality it was there where the R&D projects were completed the fastest and with the least delays over the initially estimated completion time, one important factor being that every developer understood very well what must be done in the future and what has already been done and why.
The obvious explanation is that the pace of writing software has speed up 100x but documentation has remained slow... until now.