My bet is that this so called expert is a shill for old folks homes for lack of a better term.
When old women start blowing away their sick old husbands (instead of the other 'way around), maybe I'll buy your theory.
"...seeing them going into the endless spiral of dependence..."
Desperation, without a doubt, but not uncompassionate. One old person unable to properly care for a spouse and watching them fading into the dark world of Alzheimers, without the financial resources to pay the 4-6K a month it costs to keep someone in an assisted living dementia facility is more than most can deal with. I went through this for years with my Mother who, bless her heart, is finally with the Lord, but only after losing her mind as well as her dignity.
The home we finally had to put her in for the last four months of her life was happy to accept, and in fact encouraged, our paying several months in advance on her care, but within days of getting seven months worth of money from us, they declared bancruptcy; Mom passed after four months, the family was out $12,000+. They knew this bankruptcy was coming but the heartless bastards took advantage of a caring family at a most vulnerable time. And yes, she had long term care insurance but after paying into it for some thirty years, when the time came that she needed it, we were informed that it only covered ordinary resthome care, not dementia care. More crooks preying on the trusting elderly.
Your guess that the expert is a shill for old folks homes is probably very close to the mark.