This is interesting but I was recently in England at a country house, which should be a pinnacle of architecture and it like I assume many of them were just added onto over and over again over the years leading to all the problems described. Still gorgeous, but certainly not “good architecture”. Much more McMansiony.
Adding onto a house over and over would probably create the same issues with inconsistency and mismatched styles. With later additions, there's at least a decent reason for that inconsistency though. McMansions lack that consistency from the start.
Curse not the McMansion. Rejoice in The People’s Gormenghast.