@chdot, "I believe his thoughts didn’t always influence the SNP leadership."
The current SNP government seems to prefer the counsel of employees of the Duke pf Buccleuch. Kerevan actually wrote a very insightful analysis of what he sees as the SNP's current strategy, which to my ears has the ring of truth about it.
https://www.conter.co.uk/blog/2020/7/7/snp-at-the-crossroads
"My contention is that Sturgeon and the present SNP leadership have adapted to the political and economic needs of the upper echelons of the traditional Scottish middle class – the conservative oligarchy of lawyers, accountants, bankers, medial consultants, kirk ministers and university professors who have dominated Scottish civil society since the Union of 1707."
https://www.conter.co.uk/blog/2020/9/29/snp-at-the-crossroad-what-is-to-be-done
(Not sure if university professors belong in such company, but perhaps the elite of academia sit within that bracket).