I think we're talking at cross-purposes here. I wouldn't describe the EU as technocratic at all; I'd reserve that label for the people who self-describe as the logical ones--"clear-eyed utility maximising rationalists" as you say--while pushing endlessly for more technology, less regulation and (pretty consistently) hawkish and nationalistic policies. That's very much not the EU.

I don't disagree that there are different approaches in conflict, but the binary of forward-looking technologists vs backward-looking nationalists is very out-of-date.

Right, yes I think this is just a confusion caused by my use of "technocrat". I've always used it for the technologically assisted bureaucracy, the tendency to view the economy as a cybernetics problem that can be solved by PID control (like inflation targeting). Thiel et al are more "techbro" than "technocrat". Crucially they operate outside of regular politics - they're not running for office, they're not part of the civil service (apart from the brief terrible conflagration of DOGE, an explicit Stalinist purge of old school technocrats)