I don't think 1900 and The Last Emperor were that bad; there were a lot of good things in both films, the problem seems to me that they collapse under their own weight, their own pretentions. Bertolucci wants to be dramatic, epic, romantic, realistic, naturalistic, idealistic, classic and modern, and all this at the same time. It's okay to have some pretentions or aspirations, be if you want to be Tolstoj, Leone and Marx is one single work of art, you inevitably fall short.
I didn't know the German term Kunstgewerbe, but the translation seems to be applied art. But Applied Art refers to the aesthetics of smaller objects (objets d'art), especially objects used in daily life. I don't think that's what you're trying to express.
I guess Kunstgewerbe has a secondary, slightly different meaning in German. Arty farty?
The Brothers Taviani probably could have taken over the project when Sergio passed away, they did some very fine and ambitious things in the past (Kaos, La Notte di San Lorenzo)