My impression is that the product is, for lack of a better word, broken. It covers any need for LTC, and the reality is that the need for LTC breaks down very well into the need for LTC due to cognitive impairment and Alzheimer’s disease, and the need for LTC otherwise. Generally, the duration of (and therefore cost attributable to) the latter is much shorter than the former, and so essentially LTC becomes a bipartite insurance pool, where not only those who stay well but also those who need LTC for these "otherwise" reasons are effectively subsidizing the LTC of those with cognitive impairment. That, in itself, is not notable, except for the fact that the cost of LTC for cognitive impairment is so dramatically high. I don't know what the answer is, but as long as cognitive impairment is included with other causes of the need for LTC, then LTC remains, effectively, nothing but "Alzheimer’s insurance".
While there aren't any guarantees in life, there does appear to be some bias with regard to who is more and less likely to develop cognitive impairment (i.e., the presence of hereditary factors), so that's probably going to drive a division in the marketplace between those with those factors and those without, with the former electing LTC and the latter avoiding it, thereby disrupting the balance that may be relied upon in the insurance pool. That'll inspire even more people to consider their own risks, and the cycle repeats, until the insurance pool is very concentrated with those who will much more likely need the coverage, therefore reducing the benefit of it being furnished as insurance. I suspect that there will be (if there isn't already) a black market for genetic testing and such, to help folks decide where they should come down on this. (It needs to be a black market because official records of such testing would generally invalidate applications for coverage.)
My spouse's family has some history of cognitive impairment, but exclusively by marriage (so effectively, no family history), and my family has (absolutely) no history, so we've elected to do without LTC at this time.