"too harsh, too inconsistent, not realistic, not adapted to the cultural ways of the country in question"
Well, the state parties are like little kids sometimes. I can see it, for example, in my hometown Prague, where they are trying to break their own rules on skyscrapers in the context of Prague. Then, they complain that ICOMOS is "too harsh, etc." But it is not illegal behaving like a little kid :))
Bologna: They are very smart in Bologna. Now, Piazza Maggiore, S Petronio, Torre Asinelli, S Stefano, via Zambone with the University district, etc., are all inscribed because of that silly intellectual construct of porticoes. I do not think they will ignore advice from ICOMOS for ex post