Thanks for the link -- it is a nice discussion, and contains pointers to interesting content that I wasn't aware of. (likewise, for the sibling comment with links about mBridge)
I appreciate the privacy concerns, but for anyone reading, the tradeoffs have a completely different meaning in the Indian context.
1. A fraction of the Indian populace is so poor that the cost of operating a cash economy (printing currency, transporting it securely, stocking and operating ATMS and bank branches) might prove forbiddingly expensive to service rural areas -- leading to financial exclusion. So, for them, digital infrastructure (which reduces cost of transacting) is a matter of life support, rather than the luxury that it is in the developed world (where everyone has bank accounts, access to cheap credit, and can swipe plastic cards everywhere).
2. While demonetization might have been a horrible fiasco, India's digital payments system (UPI) has been a phenomenal success -- there is substantial evidence on the ground to support that. (The former was arguably used to drive adoption for the latter, but whatever.) The state derives substantial trust from its citizens for this and other developmental and sociopolitical factors.
3. To generalize from those two nuggets -- the Indian populace (with its distinct history and cultural context) has a different relation with the Indian state -vs- banks -vs- corporations, compared to the situation in other countries. Therefore, the factors influencing trust/distrust, the developmental needs & aspirations, the politics, etc are substantially different. It makes very little sense to try and understand Indian concerns and preferences with a perspective honed elsewhere. Eg: In a system where you might trust the state more than possibly corrupt intermediaries (for a complicated array of reasons), the trust calculus is completely inverted. I'm not saying this is necessarily the case, or that nothing generalizes across countries, but the point is that the ground realities are completely different, and they influence the tradeoffs one is willing to put up with.
4. On the specific theme of privacy: the RBI concept note devotes section 7.7 to it. I wish it were more thorough, maybe it's acceptable at this preliminary stage, and can be improved through iteration... but that's an example of the kind of thoughtful commentary that would be very useful -- an analysis of specific shortcomings and/or potential improvements.