Are these truly all the findings of the author after 16 years of running IPv6? I find the list/number of points very little and most are common knowledge or be

Are these truly all the findings of the author after 16 years of running IPv6? I find the list/number of points very little and most are common knowledge or been in countless of how to roll out ipv6 guides. The mentioning that if end users have problems accessing your site, you should roll out ipv6 to your internal network, reads a 'bit' strange.