It would be impossible to summarize the entire "architectural dialog" as one thing, but let's be general. Inside these discussions, a lot of us laugh a people like Patrik Schumacher for constantly trying to make some battle of the -isms happen. Rybczynski has had a long and prolific career, and can be forgiven for being of an older generation who were taught that there was some ideological battle for what was "right" or good or beautiful in "architecture."
But today your typical architect is going to have their own design "style" or method, but also a pluralistic view that it's the diversity of approaches that makes architecture richer. Most architects I know could expound on their love for say Olson Kundig, David Chipperfield, Freddie Mamani, and Kengo Kuma in a single sitting.
I couldn't tell you a single architect who doesn't actively want to make beautiful buildings that elevate the human spirit. Rybczynski only uses the word "developer" once in the entire piece (even then it's just to mention that Wagner was one). In reality, it's the economic logic of modern development that has driven the enshittification of architecture hated by everyone - architects most of all.