There's a huge difference between using unproven emergency use designated vaccine technology and vaccines with significant track records behind them proving they save lives. The reason behind the discussion of setting up a system for tracking children who have been vaccinated sprang about because of a measles outbreak in Europe, that outbreak took nearly two hundred childrens lives. If they could better track area's where anti vax sentiment is growing due to misinformation spread on the internet they could reach out and educate people on vaccines. Glancing over the information privacy issues were a concern, how they could set up a system while maintaining the medical privacy of individuals were part of the discussion. This has no correlation to what they are talking about today.

https://www.npr.org/sections/goatsandsoda/2018/11/24/669228140/the-story-behind-the-worst-measles-outbreak-in-the-european-union